Significant Accounting Policies - Contract Balances (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024 USD ($) category	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Jan. 01, 2023 USD ($)
Significant Accounting Policies
Accounts receivable, net	$ 75,777		$ 76,893	$ 101,616
Deferred revenues	15,451		13,107	17,585
Customer deposits	23,731		23,838	16,955
Costs to obtain and fulfill a contract	1,619		1,400	$ 1,674
Unbilled receivables, net	25,300		23,900
Revenue recognized from deferred revenue	4,400	$ 6,800	$ 17,300
Amortization of contract costs	$ 300	$ 200
Number of principal categories | category	2
Practical expedient on incremental costs of obtaining contracts	true