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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Equity Method Investment Balances [Roll Forward]
Investment in joint ventures at beginning of the period	$ 55,927
(Loss) earnings from joint ventures	(2,616)
Foreign currency translation adjustment	53
Other comprehensive gain from joint ventures	1,090	$ 554
Investment in joint ventures at end of the period	54,454
WMES
Equity Method Investment Balances [Roll Forward]
Investment in joint ventures at beginning of the period	39,069
(Loss) earnings from joint ventures	(2,705)
Foreign currency translation adjustment	0
Other comprehensive gain from joint ventures	1,090
Investment in joint ventures at end of the period	37,454
CASC Willis
Equity Method Investment Balances [Roll Forward]
Investment in joint ventures at beginning of the period	16,858
(Loss) earnings from joint ventures	89
Foreign currency translation adjustment	53
Other comprehensive gain from joint ventures	0
Investment in joint ventures at end of the period	$ 17,000

X

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

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- Definition

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Equity Method Investment Balances [Roll Forward]

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Income (Loss) From Equity Method Investments Excluding Amortization On Deferred Gains

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Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Joint Venture

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No definition available.

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