Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Cash Flows [Abstract]
Cash and cash equivalents at beginning of period	$ 1,008,152	$ 882,325
Cash flows from operating activities:
Net income	247,643	241,804
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	39,556	34,400
Amortization of debt discount and fees	320	311
Stock-based compensation	88,129	74,288
Gain on investments, net	(55,394)	(123)
Deferred income taxes	(1,523)	(11,640)
Provisions for losses on receivables	158	214
ROU asset amortization and change in operating lease liabilities	(917)	(1,392)
Other non-cash items	78	99
Changes in operating assets and liabilities, net of effect of acquired businesses:
Receivables	102,991	(8,719)
Inventories	(10,689)	399
Prepaid expenses and other	(15,073)	56,212
Other assets	(7,535)	(42,084)
Accounts payable and accrued liabilities	(117,291)	(117,915)
Deferred revenue	(23,941)	40,650
Other long-term liabilities	6,720	897
Net cash provided by operating activities	253,232	267,401
Cash flows from investing activities:
Purchases of investments	(2,095)	(9,055)
Proceeds from the sale and maturity of investments	43,377	102
Purchases of property, plant and equipment	(49,601)	(26,719)
Cash paid in business combinations, net of cash acquired	(71,450)	0
Net cash used for investing activities	(79,769)	(35,672)
Cash flows from financing activities:
Proceeds from revolving credit facility	0	50,000
Payments on revolving credit facility	0	(120,000)
Proceeds from issuance of common stock	116,725	65,370
Stock received for payment of employee taxes on vesting of restricted stock	(151,123)	(67,712)
Payments for repurchases of common stock	(125,006)	(125,010)
Net cash used for financing activities	(159,404)	(197,352)
Effect of exchange rate changes on cash and cash equivalents	(9,793)	261
Increase in cash and cash equivalents	4,266	34,638
Cash and cash equivalents at end of period	1,012,418	916,963
Supplemental cash flow information:
Cash paid for interest	4,903	5,142
Cash paid for income taxes, net	$ 23,850	$ 19,814