Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Noncontrolling Interest [Member]
Redeemable Noncontrolling Interests [Member]
Balances at Dec. 31, 2016   $ 2,034 $ 2,381,011 $ (1,073,457) $ (6,865) $ (176,707) $ 223,500  
Balances (in shares) at Dec. 31, 2016   203,396,066            
Equity [Roll Forward]                
Non-cash and stock-based compensation $ 42,755   42,755 0        
Common stock issued under stock plans, net of shares withheld for employee taxes (5,452) $ 4 (5,456)          
Common stock issued under stock plans, net of shares withheld for employee taxes (in shares)   342,974            
Exercise of stock options 51,069 $ 31 51,038          
Exercise of stock options (in shares)   3,137,997            
Acquisitions 9,159           9,159  
Purchases of noncontrolling interests (6,452)   (3,616)       (2,836)  
Redeemable noncontrolling interests adjustments (91,631)   (91,631)          
Contributions received 10,671           10,671  
Cash distributions (24,715)           (24,715)  
Other 117   (95)       212  
Other comprehensive income (loss), net of tax:                
Net income (loss) 14,942     (6,015)     20,957  
Foreign currency translation adjustments 67,704         67,704    
Other 461         461    
Balances at Dec. 31, 2017 1,418,144 $ 2,069 2,374,006 (1,079,472) (6,865) (108,542) 236,948  
Balances (in shares) at Dec. 31, 2017   206,877,037            
Balances at Dec. 31, 2016               $ 347,068
Redeemable Noncontrolling Interests [Roll Forward]                
Acquisitions               6,640
Purchase of noncontrolling interests               (165,227)
Redeemable noncontrolling interests fair value adjustments               91,631
Contributions received               1,875
Cash distributions               (28,994)
Other               (1,099)
Comprehensive income (loss):                
Net income (loss)               (7,167)
Balances at Dec. 31, 2017               244,727
Equity [Roll Forward]                
Non-cash and stock-based compensation 45,715   45,715          
Common stock issued under stock plans, net of shares withheld for employee taxes (12,456) $ 4 (12,460)          
Common stock issued under stock plans, net of shares withheld for employee taxes (in shares)   434,707            
Exercise of stock options (24,327) $ 18 (24,345)          
Exercise of stock options (in shares)   1,823,809            
Conversion of convertible debt (in shares)   28            
Fair value of convertible debt conversion feature, net of issuance costs 62,639   62,639          
Repurchase of convertible debt conversion feature (92,641)   (92,641)          
Acquisitions 33,564           33,564  
Divestitures (6,684)           (6,684)  
Purchases of noncontrolling interests (13,087)   (8,210)       (4,877)  
Sales of noncontrolling interests 452   1,410       (958)  
Redeemable noncontrolling interests adjustments (77,799)   (77,799)          
Contributions received 7,501           7,501  
Cash distributions (43,346)           (43,346)  
Other (2,075)   (106)       (1,969)  
Other comprehensive income (loss), net of tax:                
Net income (loss) 83,832     60,249     23,583  
Foreign currency translation adjustments (36,689)         (36,689)    
Other 0         0    
Balances at Dec. 31, 2018 $ 1,342,743 $ 2,091 2,268,209 (1,019,223) (6,865) (145,231) 243,762  
Balances (in shares) at Dec. 31, 2018 209,135,581 209,135,581            
Redeemable Noncontrolling Interests [Roll Forward]                
Acquisitions               25,542
Purchase of noncontrolling interests               (10,356)
Sales of Noncontrolling Interest               0
Redeemable noncontrolling interests fair value adjustments               77,799
Contributions received               1,806
Cash distributions               (15,840)
Other               (831)
Comprehensive income (loss):                
Net income (loss)               6,508
Balances at Dec. 31, 2018 $ 329,355             329,355
Equity [Roll Forward]                
Non-cash and stock-based compensation 48,887   48,887          
Common stock issued under stock plans, net of shares withheld for employee taxes (15,352) $ 5 (15,357)          
Common stock issued under stock plans, net of shares withheld for employee taxes (in shares)   392,147            
Exercise of stock options 14,104 $ 9 14,095          
Exercise of stock options (in shares)   910,006            
Conversion of convertible debt 28,586 $ 8 28,578          
Conversion of convertible debt (in shares)   824,328            
Acquisitions 137,981           137,981  
Purchases of noncontrolling interests (48,745)   (23,878)       (24,867)  
Redeemable noncontrolling interests adjustments (74,771)   (74,771)          
Contributions received 14,285           14,285  
Cash distributions (84,115)           (84,115)  
Other (2,323)   (144)       (2,179)  
Other comprehensive income (loss), net of tax:                
Net income (loss) 103,156     69,889     33,267  
Foreign currency translation adjustments (482)         (482)    
Other 0              
Balances at Dec. 31, 2019 $ 1,463,954 $ 2,113 $ 2,245,619 $ (949,334) $ (6,865) $ (145,713) $ 318,134  
Balances (in shares) at Dec. 31, 2019 211,262,062 211,262,062            
Redeemable Noncontrolling Interests [Roll Forward]                
Acquisitions               52,373
Purchase of noncontrolling interests               (1,459)
Redeemable noncontrolling interests fair value adjustments               74,771
Contributions received               0
Cash distributions               (23,362)
Other               2,764
Comprehensive income (loss):                
Net income (loss)               15,056
Balances at Dec. 31, 2019 $ 449,498             $ 449,498