Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net (loss) income	$ (7,627)	$ 24,537
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	54,623	59,071
Non-cash operating lease costs	2,933	2,392
Share-based compensation	8,402	6,717
Provision for credit losses on accounts receivable	441	(1,032)
Deferred income taxes, net	(7,442)	(3,745)
Loss on extinguishment of debt	0	1,220
Loss from equity method investments	9,182	785
Unrealized gain (loss) on short-term investments held at the reporting date, net	20,345	(8,951)
Gain on investments, net	(357)	0
Other	2,776	868
Decrease (increase) in:
Accounts receivable (includes $0 and $5,278 with related parties)	27,626	57,483
Prepaid expenses and other current assets	(7,658)	10,638
Other assets	(2,048)	(5,603)
Increase (decrease) in:
Accounts payable	6,922	(22,501)
Deferred revenue	12,085	3,061
Accrued liabilities and other current liabilities	(4,896)	(8,429)
Net cash provided by operating activities	115,307	116,511
Cash flows from investing activities:
Purchases of property and equipment	(30,017)	(30,502)
Acquisition of businesses, net of cash received	(8,001)	(28,136)
Proceeds from sale of equity investments	3,174	0
Other	(3,947)	0
Net cash used in investing activities	(38,791)	(58,638)
Cash flows from financing activities:
Payment of debt	0	(54,609)
Debt extinguishment costs	0	(756)
Repurchase of common stock	(2,875)	(62,810)
Proceeds from exercise of stock options	0	148
Deferred payments for acquisitions	(6,679)	(2,676)
Other	71	(5)
Net cash used in financing activities	(9,483)	(120,708)
Effect of exchange rate changes on cash and cash equivalents	1,676	(2,977)
Net change in cash and cash equivalents	68,709	(65,812)
Cash and cash equivalents at beginning of period	652,793	694,842
Cash and cash equivalents at end of period	$ 721,502	$ 629,030