CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Income Statement [Abstract]
Revenues	$ 605,906	$ 536,308	$ 1,190,272	$ 1,052,133
Cost of revenues	112,362	100,971	231,558	196,450
Gross profit	493,544	435,337	958,714	855,683
Operating expenses:
Selling and marketing (excluding customer base amortization)	250,026	181,344	476,260	325,341
Software development	63,369	51,587	129,959	105,608
General and administrative	90,563	77,345	180,071	155,306
Customer base amortization	10,440	14,878	21,057	30,970
Total operating expenses	414,398	325,154	807,347	617,225
Income from operations	79,146	110,183	151,367	238,458
Interest income (expense), net	51,911	(3,399)	95,459	(11,117)
Other income, net	609	1,343	1,190	2,207
Income before income taxes	131,666	108,127	248,016	229,548
Income tax expense	31,146	24,654	60,365	56,757
Net income	$ 100,520	$ 83,473	$ 187,651	$ 172,791
Net income per share - basic (in USD per share)	$ 0.25	$ 0.21	$ 0.46	$ 0.44
Net income per share - diluted (in USD per share)	$ 0.25	$ 0.21	$ 0.46	$ 0.44
Weighted-average outstanding shares - basic (in shares)	405,429	393,342	404,960	393,119
Weighted-average outstanding shares - diluted (in shares)	406,751	394,478	406,454	394,356