CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts receivable and unbilled, net	$ 298,400	$ 253,404
Prepaid expenses and other current assets	49,979	52,293
Accounts payable	31,869	33,069
Advanced billings	559,860	462,729
Other current liabilities	$ 40,441	$ 47,547
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock authorized (in shares)	5,000,000	5,000,000
Preferred stock issued (in shares)	0	0
Preferred stock outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock authorized (in shares)	250,000,000	250,000,000
Common stock issued (in shares)	30,752,292	31,091,694
Common stock outstanding (in shares)	30,752,292	31,091,694
Treasury stock (in shares)	70,573	71,573
Related Party
Accounts receivable and unbilled, net	$ 2,400	$ 7,700
Prepaid expenses and other current assets	300
Accounts payable	3,100	300
Advanced billings	$ 10,100	8,800
Other current liabilities		$ 12,500