Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 307,089	$ 344,523
Short-term investments	45,590	20,210
Accounts receivable, net of allowance for doubtful accounts of $4,778 and $4,494 respectively	51,375	60,359
Prepaid expenses and other current assets	7,787	5,745
Total current assets	411,841	430,837
Property and equipment, net	23,271	22,507
Goodwill	193,009	192,227
Intangible assets, net	94,386	95,517
Operating lease assets with right-of-use	19,510	20,039
Deferred tax assets	4,136	2,945
Other assets	649	645
Total assets	746,802	764,717
Current liabilities:
Accounts payable	3,052	3,298
Current operating lease liabilities	3,896	4,099
Accrued expenses and other current liabilities	6,580	10,935
Accrued compensation expenses	1,550	4,643
Income taxes payable	9,974	7,827
Contract liabilities	22,350	27,086
Total current liabilities	47,402	57,888
Non-current operating lease liabilities	19,609	20,371
Convertible senior notes	456,321	455,694
Deferred tax liabilities	13,448	13,290
Total liabilities	536,780	547,243
Leases and contingencies (see Note 9)
Stockholders’ equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued or outstanding	0	0
Common stock, $0.001 par value; 100,000,000 shares authorized; 58,014,065 and 57,919,501 shares issued, respectively 28,535,450 and 29,023,093 shares outstanding respectively	58	58
Treasury stock, at cost; 29,478,615 and 28,896,408 shares, respectively	(303,876)	(278,876)
Additional paid-in capital	439,269	425,458
Accumulated other comprehensive loss	(7,445)	(9,537)
Retained earnings	82,016	80,371
Total stockholders’ equity	210,022	217,474
Total liabilities and stockholders’ equity	$ 746,802	$ 764,717