Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 124,838	$ 98,719
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	475,000,000	475,000,000
Common stock, shares issued (in shares)	127,566,381	127,113,023
Common stock, shares outstanding (in shares)	75,934,303	78,879,551
Treasury stock, shares (in shares)	51,632,078	48,233,471