Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities
Net income	$ 66,768	$ 107,397
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	52,944	45,376
Amortization of contract acquisition costs	1,063	350
Amortization of debt issuance costs	500	447
Imputed interest expense and fair value adjustments to contingent consideration		1,046
Provision for credit losses	198	155
(Gain) loss on disposal of assets	1,116	386
Impairment losses	10,360	4,217
Deferred income taxes	(9,161)	(5,522)
Excess tax benefit from equity-based awards	(913)	(3,340)
Equity-based compensation expense	7,882	7,399
(Gain) loss on foreign currency derivatives	224	21
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	(38,271)	48,515
Prepaids and other assets	35,866	3,175
Accounts payable and accrued expenses	21,041	(18,062)
Deferred revenue and other liabilities	(58,345)	(58,721)
Net cash provided by operating activities	91,272	132,839
Cash flows from investing activities
Proceeds from sale of long-live assets	102	29
Purchases of property, plant and equipment	(35,790)	(23,593)
Acquisitions, net of cash acquired of $18,638, $4,423 and $4,547, respectively	(142,420)	(481,718)
Net cash used in investing activities	(178,108)	(505,282)
Cash flows from financing activities
Net proceeds (borrowings) from line of credit	139,000	449,000
Payments on other debt	(1,877)	(3,522)
Payments of contingent consideration and hold back payments to acquisitions	(9,600)	(11,517)
Dividends paid to shareholders	(23,518)	(20,132)
Payments to noncontrolling interest	(7,219)	(5,589)
Tax payments related to issuance of restricted stock units	(3,065)	(6,680)
Payments of debt issuance costs	0	(1,102)
Net cash (used in) provided by financing activities	93,721	400,458
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(12,350)	(1,930)
Increase (decrease) in cash, cash equivalents and restricted cash	(5,465)	26,085
Cash, cash equivalents and restricted cash, beginning of period	180,682	159,015
Cash, cash equivalents and restricted cash, end of period	175,217	185,100
Supplemental disclosures
Cash paid for interest	9,394	4,637
Cash paid for income taxes	19,882	46,723
Non-cash investing and financing activities
Acquisition of long lived assets through finance leases	202	625
Acquisition of equipment through increase in accounts payable, net	$ 467	$ (2,727)