CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash, cash equivalents and restricted cash	$ 3,761,587	$ 3,755,912
Accounts receivable	128,700	119,059
Less: Allowance for credit losses	(13,049)	(15,110)
Accounts receivable, net	115,651	103,949
Prepaid expenses and other current assets	37,599	28,651
Total current assets	3,914,837	3,888,512
Deferred income taxes, net	1,975	4,983
Property and equipment, net	238,866	126,325
Lease right-of-use assets	105,964	108,740
Goodwill	2,293,514	2,235,999
Intangible assets, net	447,900	426,745
Deferred commission costs, net	96,303	93,274
Deposits and other assets	16,971	15,856
Income tax receivable	14,986	14,986
Total assets	7,131,316	6,915,420
Current liabilities:
Accounts payable	17,487	15,732
Accrued wages and commissions	82,905	80,998
Accrued expenses	86,788	110,305
Income taxes payable	11,828	16,316
Lease liabilities	29,878	32,648
Deferred revenue	92,631	74,851
Total current liabilities	321,517	330,850
Long-term debt, net	987,633	986,715
Deferred income taxes, net	83,399	72,991
Income taxes payable	26,188	25,282
Lease and other long-term liabilities	109,156	124,223
Total liabilities	1,527,893	1,540,061
Total stockholders' equity	5,603,423	5,375,359
Total liabilities and stockholders’ equity	$ 7,131,316	$ 6,915,420