Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Equity Method Investment Balances [Roll Forward]
Investment in joint ventures at beginning of the period			$ 55,927
Loss from joint ventures			(1,147)
Foreign currency translation adjustment			(848)
Other comprehensive gain from joint ventures	$ 319	$ 157	1,409	$ 711
Investment in joint ventures at end of the period	55,341		55,341
WMES
Equity Method Investment Balances [Roll Forward]
Investment in joint ventures at beginning of the period			39,069
Loss from joint ventures			(931)
Foreign currency translation adjustment			0
Other comprehensive gain from joint ventures			1,409
Investment in joint ventures at end of the period	39,547		39,547
CASC Willis
Equity Method Investment Balances [Roll Forward]
Investment in joint ventures at beginning of the period			16,858
Loss from joint ventures			(216)
Foreign currency translation adjustment			(848)
Other comprehensive gain from joint ventures			0
Investment in joint ventures at end of the period	$ 15,794		$ 15,794