CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net income	$ 165,679	$ 121,908
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	68,943	74,236
Gains from sale of investments	0	(1)
Share-based compensation expense	75,962	57,273
Amortization of operating lease right-of-use assets	4,860	4,865
Deferred income tax benefit	(11,080)	(36,807)
Other	39	190
Changes in operating assets and liabilities, exclusive of effects of acquired companies:
Accounts receivable	(126,188)	(89,785)
Income tax payable	(5,626)	17,909
Prepaid expenses and other current assets	(25,712)	(32,586)
Accounts payable	14,765	4,136
Operating lease liabilities	(5,663)	(6,426)
Accrued liabilities	(19,727)	(1,173)
Deferred revenue	18,531	19,263
Other long-term liabilities	(314)	3,141
Net cash provided by operating activities	154,469	136,143
Cash flows from investing activities:
Additions to property and equipment	(7,822)	(13,850)
Purchase of marketable security investments	(107,286)	0
Proceeds and maturities from marketable security investments	34,284	6,351
Investment in software development	(10,400)	(16,493)
Cost of acquisitions, net of cash acquired	(18,230)	(1,302)
Other	526	21
Net cash used by investing activities	(108,928)	(25,273)
Cash flows from financing activities:
Payment on term loans	0	(50,000)
Purchase of treasury shares	(1,605)	0
Proceeds from exercise of stock options, net of withheld shares for taxes upon equity award settlement	(3,155)	15,885
Contributions from employee stock purchase plan	9,322	8,474
Other	(7,377)	0
Net cash used by financing activities	(2,815)	(25,641)
Net increase in cash and cash equivalents	42,726	85,229
Cash and cash equivalents at beginning of period	744,721	165,493
Cash and cash equivalents at end of period	787,447	250,722
Supplemental cash flow information:
Cash paid for interest	969	1,930
Cash paid for income taxes, net	46,293	39,062
Non-cash investing and financing activities:
Non-cash additions to property and equipment	$ 502	$ 45