Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 263,706	$ 204,705
Accounts receivable, net of allowance of $2,419 and $3,497 at December 31, 2021 and December 31, 2020, respectively	124,420	109,202
Income taxes receivable	2,597	1,874
Prepaid expenses	17,053	14,717
Other current assets	643	3,543
Total current assets	408,419	334,041
Property and equipment, net	13,889	17,903
Operating lease right-of-use assets	27,272	31,470
Goodwill, net	62,239	62,252
Deferred income taxes	7,650	5,760
Other assets	20,239	13,986
Total assets	539,708	465,412
Current liabilities:
Accounts payable	19,625	17,805
Accrued compensation and benefits	53,104	41,962
Accrued and other liabilities	22,741	21,181
Deferred revenue	153,196	114,164
Income taxes payable	376	1,874
Total current liabilities	249,042	196,986
Operating lease liabilities, long-term	23,157	27,843
Other non-current liabilities	16,865	21,686
Commitments and contingencies (Note 5)
Shareholders' equity:
Preferred stock, no par value; 20,000,000 shares authorized, no shares issued or outstanding at December 31, 2021 and December 31, 2020
Common stock, $.01 par value; 200,000,000 shares authorized; 63,154,494 and 63,527,186 shares issued and outstanding at December 31, 2021 and December 31, 2020, respectively	631	635
Retained earnings	269,841	236,524
Accumulated other comprehensive loss	(19,828)	(18,262)
Total shareholders' equity	250,644	218,897
Total liabilities and shareholders' equity	$ 539,708	$ 465,412