Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 54,560	$ 114,555
Marketable securities	29,012
Accounts receivable, net of allowance for credit losses of $1,463 and $713, respectively	39,651	58,480
Unbilled contracts receivable	74,919	73,754
Other current assets	7,700	11,924
Total current assets	205,842	258,713
Long-term unbilled contracts receivable	73,843	40,705
Property and equipment, net	6,971	4,550
Operating lease right-of-use assets	9,484	5,993
Intangible assets, net	347,172	432,476
Goodwill	313,660	313,660
Long-term income tax receivable	120,338	113,679
Other long-term assets	28,246	40,750
Total assets	1,105,556	1,210,526
Current liabilities:
Accounts payable	9,623	8,546
Accrued legal fees	1,796	4,942
Accrued liabilities	17,342	26,335
Current portion of long-term debt, net	66,145	109,813
Deferred revenue	7,132	17,076
Total current liabilities	102,038	166,712
Deferred revenue, less current portion	17,672	10,683
Long-term debt, net	519,550	619,580
Noncurrent operating lease liabilities	9,730	4,794
Long-term income tax payable	81,834	87,302
Other long-term liabilities	18,110	20,043
Total liabilities	748,934	909,114
Commitments and contingencies (Note 16)
Stockholders' equity:
Preferred stock: $0.001 par value; authorized (2023: 15,000 shares; 2022: 15,000 shares) and no shares issued and outstanding
Common stock: $0.001 par value; (2023: authorized 350,000 shares, issued 120,730 shares, outstanding 107,384 shares; 2022: authorized 350,000 shares, issued 117,392 shares, outstanding 105,167 shares)	121	117
Additional paid-in capital	635,331	636,266
Treasury stock at cost (2023: 13,346 shares; 2022: 12,225 shares)	(222,497)	(211,223)
Accumulated other comprehensive loss	(8)	(51)
Accumulated deficit	(56,325)	(123,697)
Total stockholders' equity	356,622	301,412
Total liabilities and equity	$ 1,105,556	$ 1,210,526