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Fair Value (Tables)
 3 Months Ended
Mar. 31, 2022
Fair Value Disclosures [Abstract]  
Schedule of fair value, assets and liabilities measured on recurring basis
The following table presents fair values of our financial and debt instruments categorized by their fair value hierarchy as of March 31, 2022:
Level 1Level 2Level 3Total
Available-for-sale investments$— $79,315 $— $79,315 
Equity investments— — 10,000 10,000 
2021 Credit Agreement
Revolving Credit Facility— — — — 
Term Loan A-1— 573,274 — 573,274 
Term Loan A-2— 155,714 — 155,714 
Convertible Senior Notes due 2026— 662,148 — 662,148 
Schedule of fair value, by balance sheet grouping
The following table presents the fair value and carrying value, net, of the 2021 Credit Agreement and our Convertible Notes due 2026):
 Fair Value atCarrying Value at
March 31, 2022December 31, 2021March 31, 2022December 31, 2021
2021 Credit Agreement
Revolving Credit Facility$— $— $— $— 
Term Loan A-1573,274 580,515 573,274 580,515 
Term Loan A-2155,714 167,997 155,714 167,996 
Convertible Notes due 2026662,148 736,662 593,194 592,765 
 $1,391,136 $1,485,174 $1,322,182 $1,341,276