Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 894,703	$ 968,691
Restricted cash	0	2,900
Accounts receivable, net	87,004	68,729
Prepaid expenses and other current assets	94,043	46,048
Total current assets	1,075,750	1,086,368
Property and equipment, net	22,105	23,057
Goodwill	320,196	261,116
Intangible assets, net	94,780	36,919
Capitalized software, net	31,996	19,800
Operating lease right-of-use assets	26,902	27,712
Deferred tax assets, net	12,971	13,117
Other assets	2,229	2,025
Total assets	1,586,929	1,470,114
Current liabilities
Accounts payable	18,378	10,291
Accrued expenses and other current liabilities	33,759	37,692
Current portion of debt	7,029	7,029
Operating lease liabilities, current	6,325	4,539
Total current liabilities	65,491	59,551
Debt, net	657,877	659,888
Operating lease liabilities, net of current portion	32,818	33,467
Other liabilities	6,349	5,849
Total liabilities	762,535	758,755
Commitments and contingencies (Note 8)
Stockholders' equity
Preferred stock, $0.0001 par value; 50,000 shares authorized and zero shares issued and outstanding at June 30, 2021 and December 31, 2020
Common stock, $0.0001 par value; Class A: 2,000,000 shares authorized, 72,054 and 63,071 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively; and Class B: 1,000,000 shares authorized, 323,339 and 328,589 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively	39	39
Additional paid-in capital	2,182,079	2,101,773
Accumulated deficit	(1,357,724)	(1,390,453)
Total stockholders' equity	824,394	711,359
Total liabilities and stockholders' equity	$ 1,586,929	$ 1,470,114