CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) - USD ($)  $ in Thousands  | 
Total  | 
Cumulative Effect, Period of Adoption, Adjustment  | 
Common Stock [Member]  | 
Additional Paid-in Capital [Member]  | 
Accumulated Deficit [Member]  | 
 Accumulated Deficit [Member]  
Cumulative Effect, Period of Adoption, Adjustment 
 | 
Cost of Shares Held in Treasury [Member]  | 
Accumulated Other Comprehensive Income (Loss) [Member]  | 
Noncontrolling Interest [Member]  | 
Redeemable Noncontrolling Interests [Member]  | 
| Balances (in shares) at Dec. 31, 2019 | 
 
 | 
 
 | 
211,262,062
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Balances at Dec. 31, 2019 | 
$ 1,463,954
 | 
$ (2,964)
 | 
$ 2,113
 | 
$ 2,245,619
 | 
$ (949,334)
 | 
$ (2,964)
 | 
$ (6,865)
 | 
$ (145,713)
 | 
$ 318,134
 | 
 
 | 
| Equity [Roll Forward] | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Non-cash and stock-based compensation | 
50,270
 | 
 
 | 
 
 | 
50,270
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Common stock issued under stock plans, net of shares withheld for employee taxes (in shares) | 
 
 | 
 
 | 
341,249
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Common stock issued under stock plans, net of shares withheld for employee taxes | 
(7,662)
 | 
 
 | 
$ 3
 | 
(7,665)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Exercise of stock options, net of shares withheld for option cost and employee taxes (in shares) | 
 
 | 
 
 | 
919,836
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Exercise of stock options, net of shares withheld for option cost and employee taxes | 
1,728
 | 
 
 | 
$ 9
 | 
1,719
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Fair value of convertible debt conversion feature, net of issuance cost | 
33,347
 | 
 
 | 
 
 | 
33,347
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Acquisitions | 
35,322
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
35,322
 | 
 
 | 
| Divestitures | 
(593)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(593)
 | 
 
 | 
| Purchases of noncontrolling interests | 
(7,971)
 | 
 
 | 
 
 | 
(6,939)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(1,032)
 | 
 
 | 
| Sales of noncontrolling interests | 
31,000
 | 
 
 | 
 
 | 
(8,161)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
39,161
 | 
 
 | 
| Redeemable noncontrolling interests fair value adjustments | 
(12,945)
 | 
 
 | 
 
 | 
(12,945)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Contributions received | 
1,467
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
1,467
 | 
 
 | 
| Cash distributions | 
(12,683)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(12,683)
 | 
 
 | 
| Other | 
(621)
 | 
 
 | 
 
 | 
176
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(445)
 | 
 
 | 
| Comprehensive income (loss): | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Net income (loss) | 
(791,213)
 | 
 
 | 
 
 | 
 
 | 
(752,301)
 | 
 
 | 
 
 | 
 
 | 
(38,912)
 | 
 
 | 
| Unrealized gain (loss) on cash flow hedge | 
(36,596)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(36,596)
 | 
 
 | 
 
 | 
| Realized loss on cash flow hedge | 
1,353
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
1,353
 | 
 
 | 
 
 | 
| Foreign currency translation adjustments | 
(62,849)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(62,849)
 | 
 
 | 
 
 | 
| Balances at Jun. 30, 2020 | 
683,530
 | 
 
 | 
$ 2,125
 | 
2,295,069
 | 
(1,704,599)
 | 
 
 | 
(6,865)
 | 
(243,805)
 | 
341,605
 | 
 
 | 
| Balances (in shares) at Jun. 30, 2020 | 
 
 | 
 
 | 
212,523,147
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Balances at Dec. 31, 2019 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
$ 449,498
 | 
| Redeemable Noncontrolling Interests [Roll Forward] | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Acquisitions | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
11,899
 | 
| Purchases of noncontrolling interests | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(96,190)
 | 
| Redeemable noncontrolling interests fair value adjustments | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
12,945
 | 
| Contribution received | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
| Cash distributions | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(13,632)
 | 
| Other | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
1
 | 
| Comprehensive income (loss): | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Net income (loss) | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(30,293)
 | 
| Balances at Jun. 30, 2020 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
334,228
 | 
| Balances (in shares) at Mar. 31, 2020 | 
 
 | 
 
 | 
211,834,739
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Balances at Mar. 31, 2020 | 
1,230,832
 | 
 
 | 
$ 2,118
 | 
2,260,509
 | 
(1,137,082)
 | 
 
 | 
(6,865)
 | 
(259,326)
 | 
371,478
 | 
 
 | 
| Equity [Roll Forward] | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Non-cash and stock-based compensation | 
38,538
 | 
 
 | 
 
 | 
38,538
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Common stock issued under stock plans, net of shares withheld for employee taxes (in shares) | 
 
 | 
 
 | 
79,079
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Common stock issued under stock plans, net of shares withheld for employee taxes | 
(216)
 | 
 
 | 
$ 1
 | 
(217)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Exercise of stock options, net of shares withheld for option cost and employee taxes (in shares) | 
 
 | 
 
 | 
609,329
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Exercise of stock options, net of shares withheld for option cost and employee taxes | 
(4,728)
 | 
 
 | 
$ 6
 | 
(4,734)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Fair value of convertible debt conversion feature, net of issuance cost | 
17
 | 
 
 | 
 
 | 
17
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Acquisitions | 
4,157
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
4,157
 | 
 
 | 
| Divestitures | 
(593)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(593)
 | 
 
 | 
| Purchases of noncontrolling interests | 
(454)
 | 
 
 | 
 
 | 
(454)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
 
 | 
| Redeemable noncontrolling interests fair value adjustments | 
1,595
 | 
 
 | 
 
 | 
1,595
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Contributions received | 
1,391
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
1,391
 | 
 
 | 
| Cash distributions | 
(7,915)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(7,915)
 | 
 
 | 
| Other | 
(686)
 | 
 
 | 
 
 | 
(185)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(501)
 | 
 
 | 
| Comprehensive income (loss): | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Net income (loss) | 
(595,115)
 | 
 
 | 
 
 | 
 
 | 
(567,517)
 | 
 
 | 
 
 | 
 
 | 
(27,598)
 | 
 
 | 
| Unrealized gain (loss) on cash flow hedge | 
(5,765)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(5,765)
 | 
 
 | 
 
 | 
| Realized loss on cash flow hedge | 
1,353
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
1,353
 | 
 
 | 
 
 | 
| Foreign currency translation adjustments | 
19,933
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
19,933
 | 
 
 | 
 
 | 
| Balances at Jun. 30, 2020 | 
683,530
 | 
 
 | 
$ 2,125
 | 
2,295,069
 | 
(1,704,599)
 | 
 
 | 
(6,865)
 | 
(243,805)
 | 
341,605
 | 
 
 | 
| Balances (in shares) at Jun. 30, 2020 | 
 
 | 
 
 | 
212,523,147
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Balances at Mar. 31, 2020 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
443,606
 | 
| Redeemable Noncontrolling Interests [Roll Forward] | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Acquisitions | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
751
 | 
| Purchases of noncontrolling interests | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(89,779)
 | 
| Redeemable noncontrolling interests fair value adjustments | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(1,595)
 | 
| Contribution received | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
| Cash distributions | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(3,287)
 | 
| Other | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
1
 | 
| Comprehensive income (loss): | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Net income (loss) | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(15,469)
 | 
| Balances at Jun. 30, 2020 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
334,228
 | 
| Balances (in shares) at Dec. 31, 2020 | 
 
 | 
 
 | 
214,466,988
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Balances at Dec. 31, 2020 | 
(133,752)
 | 
 
 | 
$ 2,145
 | 
2,386,790
 | 
(2,676,833)
 | 
 
 | 
(6,865)
 | 
(177,009)
 | 
338,020
 | 
 
 | 
| Equity [Roll Forward] | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Non-cash and stock-based compensation | 
52,847
 | 
 
 | 
 
 | 
52,847
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Common stock issued under stock plans, net of shares withheld for employee taxes (in shares) | 
 
 | 
 
 | 
661,549
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Common stock issued under stock plans, net of shares withheld for employee taxes | 
(20,063)
 | 
 
 | 
$ 7
 | 
(20,070)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Exercise of stock options, net of shares withheld for option cost and employee taxes (in shares) | 
 
 | 
 
 | 
1,259,940
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Exercise of stock options, net of shares withheld for option cost and employee taxes | 
9,936
 | 
 
 | 
$ 12
 | 
9,924
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Acquisitions | 
0
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
 
 | 
| Divestitures | 
0
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
 
 | 
| Purchases of noncontrolling interests | 
1,198
 | 
 
 | 
 
 | 
3,775
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(2,577)
 | 
 
 | 
| Sales of noncontrolling interests | 
9,029
 | 
 
 | 
 
 | 
161
 | 
 
 | 
 
 | 
 
 | 
 
 | 
8,868
 | 
 
 | 
| Redeemable noncontrolling interests fair value adjustments | 
35
 | 
 
 | 
 
 | 
35
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Contributions received | 
15,193
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
15,193
 | 
 
 | 
| Cash distributions | 
(12,511)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(12,511)
 | 
 
 | 
| Other | 
(2,121)
 | 
 
 | 
 
 | 
0
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(2,121)
 | 
 
 | 
| Comprehensive income (loss): | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Net income (loss) | 
(514,571)
 | 
 
 | 
 
 | 
 
 | 
(502,858)
 | 
 
 | 
 
 | 
 
 | 
(11,713)
 | 
 
 | 
| Unrealized gain (loss) on cash flow hedge | 
9,308
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
9,308
 | 
 
 | 
 
 | 
| Realized loss on cash flow hedge | 
3,862
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
3,862
 | 
 
 | 
 
 | 
| Foreign currency translation adjustments | 
2,007
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
2,007
 | 
 
 | 
 
 | 
| Balances at Jun. 30, 2021 | 
(579,603)
 | 
 
 | 
$ 2,164
 | 
2,433,462
 | 
(3,179,691)
 | 
 
 | 
(6,865)
 | 
(161,832)
 | 
333,159
 | 
 
 | 
| Balances (in shares) at Jun. 30, 2021 | 
 
 | 
 
 | 
216,388,477
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Balances at Dec. 31, 2020 | 
272,449
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
272,449
 | 
| Redeemable Noncontrolling Interests [Roll Forward] | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Acquisitions | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
598
 | 
| Purchases of noncontrolling interests | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(1,698)
 | 
| Redeemable noncontrolling interests fair value adjustments | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(35)
 | 
| Contribution received | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
95
 | 
| Cash distributions | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(2,031)
 | 
| Other | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
| Comprehensive income (loss): | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Net income (loss) | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(18,611)
 | 
| Balances at Jun. 30, 2021 | 
250,767
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
250,767
 | 
| Balances (in shares) at Mar. 31, 2021 | 
 
 | 
 
 | 
216,027,546
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Balances at Mar. 31, 2021 | 
(394,114)
 | 
 
 | 
$ 2,160
 | 
2,431,387
 | 
(2,984,026)
 | 
 
 | 
(6,865)
 | 
(173,216)
 | 
336,446
 | 
 
 | 
| Equity [Roll Forward] | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Non-cash and stock-based compensation | 
12,830
 | 
 
 | 
 
 | 
12,830
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Common stock issued under stock plans, net of shares withheld for employee taxes (in shares) | 
 
 | 
 
 | 
95,264
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Common stock issued under stock plans, net of shares withheld for employee taxes | 
(119)
 | 
 
 | 
$ 2
 | 
(121)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Exercise of stock options, net of shares withheld for option cost and employee taxes (in shares) | 
 
 | 
 
 | 
265,667
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Exercise of stock options, net of shares withheld for option cost and employee taxes | 
(15,858)
 | 
 
 | 
$ 2
 | 
(15,860)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Acquisitions | 
0
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
 
 | 
| Divestitures | 
0
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
 
 | 
| Purchases of noncontrolling interests | 
1,698
 | 
 
 | 
 
 | 
4,275
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(2,577)
 | 
 
 | 
| Redeemable noncontrolling interests fair value adjustments | 
951
 | 
 
 | 
 
 | 
951
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Contributions received | 
13,471
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
13,471
 | 
 
 | 
| Cash distributions | 
(8,034)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(8,034)
 | 
 
 | 
| Other | 
(2,121)
 | 
 
 | 
 
 | 
0
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(2,121)
 | 
 
 | 
| Comprehensive income (loss): | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Net income (loss) | 
(199,691)
 | 
 
 | 
 
 | 
 
 | 
(195,665)
 | 
 
 | 
 
 | 
 
 | 
(4,026)
 | 
 
 | 
| Unrealized gain (loss) on cash flow hedge | 
(5,788)
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(5,788)
 | 
 
 | 
 
 | 
| Realized loss on cash flow hedge | 
1,946
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
1,946
 | 
 
 | 
 
 | 
| Foreign currency translation adjustments | 
15,226
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
15,226
 | 
 
 | 
 
 | 
| Balances at Jun. 30, 2021 | 
(579,603)
 | 
 
 | 
$ 2,164
 | 
$ 2,433,462
 | 
$ (3,179,691)
 | 
 
 | 
$ (6,865)
 | 
$ (161,832)
 | 
$ 333,159
 | 
 
 | 
| Balances (in shares) at Jun. 30, 2021 | 
 
 | 
 
 | 
216,388,477
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Balances at Mar. 31, 2021 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
264,384
 | 
| Redeemable Noncontrolling Interests [Roll Forward] | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Acquisitions | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
598
 | 
| Purchases of noncontrolling interests | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(1,698)
 | 
| Redeemable noncontrolling interests fair value adjustments | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(951)
 | 
| Contribution received | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
95
 | 
| Cash distributions | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(892)
 | 
| Other | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
| Comprehensive income (loss): | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
| Net income (loss) | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
(10,769)
 | 
| Balances at Jun. 30, 2021 | 
$ 250,767
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
$ 250,767
 |