| Other Information | 
 
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   | 
December 31,  | 
 
   | 
2018  | 
   | 
2017  | 
 
   | 
(in thousands)  | 
 
The following details the components of “Other current assets”:  | 
   | 
   | 
   | 
 
Inventory  | 
$  | 
12,575  | 
 
  | 
   | 
$  | 
17,467  | 
 
  | 
 
Notes receivable  | 
15,200  | 
 
  | 
   | 
21,278  | 
 
  | 
 
Other  | 
14,910  | 
 
  | 
   | 
13,158  | 
 
  | 
 
Total other current assets  | 
$  | 
42,685  | 
 
  | 
   | 
$  | 
51,903  | 
 
  | 
 
   | 
   | 
   | 
   | 
 
The following details the components of “Other long-term assets”:  | 
   | 
 
  | 
   | 
   | 
 
  | 
 
Investments in nonconsolidated affiliates  | 
$  | 
137,211  | 
 
  | 
   | 
$  | 
105,271  | 
 
  | 
 
Notes receivable  | 
112,276  | 
 
  | 
   | 
41,587  | 
 
  | 
 
Other  | 
178,593  | 
 
  | 
   | 
106,322  | 
 
  | 
 
Total other long-term assets  | 
$  | 
428,080  | 
 
  | 
   | 
$  | 
253,180  | 
 
  | 
 
   | 
   | 
   | 
   | 
 
The following details the components of “Accrued expenses”:  | 
   | 
 
  | 
   | 
   | 
 
  | 
 
Accrued compensation and benefits  | 
$  | 
265,068  | 
 
  | 
   | 
$  | 
233,459  | 
 
  | 
 
Accrued event expenses  | 
369,843  | 
 
  | 
   | 
247,380  | 
 
  | 
 
Accrued insurance  | 
126,015  | 
 
  | 
   | 
97,606  | 
 
  | 
 
Accrued legal  | 
16,295  | 
 
  | 
   | 
129,882  | 
 
  | 
 
Collections on behalf of others  | 
43,981  | 
 
  | 
   | 
48,099  | 
 
  | 
 
Other  | 
424,263  | 
 
  | 
   | 
352,820  | 
 
  | 
 
Total accrued expenses  | 
$  | 
1,245,465  | 
 
  | 
   | 
$  | 
1,109,246  | 
 
  | 
 
   | 
   | 
   | 
   | 
 
The following details the components of “Other current liabilities”:  | 
   | 
 
  | 
   | 
   | 
 
  | 
 
Contingent and deferred purchase consideration  | 
$  | 
44,929  | 
 
  | 
   | 
$  | 
143,809  | 
 
  | 
 
Other  | 
22,118  | 
 
  | 
   | 
16,829  | 
 
  | 
 
Total other current liabilities  | 
$  | 
67,047  | 
 
  | 
   | 
$  | 
160,638  | 
 
  | 
 
   | 
   | 
 
  | 
   | 
   | 
 
  | 
 
The following details the components of “Other long-term liabilities”:  | 
   | 
 
  | 
   | 
   | 
 
  | 
 
Deferred revenue  | 
$  | 
27,504  | 
 
  | 
   | 
$  | 
9,569  | 
 
  | 
 
Contingent and deferred purchase consideration  | 
30,333  | 
 
  | 
   | 
41,946  | 
 
  | 
 
Other  | 
147,140  | 
 
  | 
   | 
122,876  | 
 
  | 
 
Total other long-term liabilities  | 
$  | 
204,977  | 
 
  | 
   | 
$  | 
174,391  | 
 
  | 
 
  
  
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