Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 103,629	$ 115,769
Marketable investments (Note 2)	19,688	18,509
Accounts receivable, net of allowance for expected credit losses of $560 and $610 as of December 31, 2022 and 2021, respectively (Note 1,14)	73,345	86,965
Deferred commissions	24,559	29,631
Prepaid expenses and other current assets	14,069	18,614
Total current assets	235,290	269,488
Property and equipment, net	23,208	28,245
Operating lease right-of-use assets	49,970	65,009
Goodwill	242,149	244,994
Intangible assets, net	49,504	62,733
Other assets	8,317	9,660
Total assets	608,438	680,129
Current Liabilities:
Accounts payable	361	840
Accrued expenses and other current liabilities	91,007	97,800
Deferred revenue	178,021	213,696
Total current liabilities	269,389	312,336
Long-term debt	50,000	75,000
Non-current operating lease liabilities	50,751	65,038
Other non-current liabilities (Note 14)	16,642	23,848
Total liabilities	386,782	476,222
Commitments and contingencies (Note 5, 15)
Stockholders' Equity:
Preferred stock, $0.01 par value Authorized - 500 shares; issued and outstanding - none	0	0
Common stock, $0.01 par value Authorized - 125,000 shares Issued - 24,367 and 24,085 shares as of December 31, 2022 and 2021, respectively Outstanding - 19,062and 19,058 shares as of December 31, 2022 and 2021, respectively	244	241
Additional paid-in capital	261,766	245,985
Retained earnings	174,631	152,825
Treasury stock - 5,305 and 5,027 shares as of December 31, 2022 and 2021, respectively	(207,067)	(191,955)
Accumulated other comprehensive loss	(7,918)	(3,189)
Total stockholders’ equity	221,656	203,907
Total liabilities and stockholders’ equity	$ 608,438	$ 680,129