Equity Method Investments and Related-Party Transactions - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Nov. 18, 2020
Schedule of Equity Method Investments [Line Items]
Foreign currency translation adjustments, net of tax		$ 9,047	$ (2,371)	$ 12,662	$ (6,091)
Income from equity method investments		774	1,807	788	4,328
Euro Infrastructure Co [Member]
Schedule of Equity Method Investments [Line Items]
Payments, net of transaction costs, to acquire the issued shares in investment	$ 139,500
Equity method investment ownership percentage	49.00%
Foreign currency translation adjustments, net of tax		4,400	4,200	$ 5,900	5,000
Maximum useful life of intangible assets basis difference, years				11 years
Weighted average useful life of intangible assets basis difference, years				10 years
Maximum useful life of tangible assets basis difference, years				11 years
Weighted average useful life of tangible assets basis difference, years				11 years
Income from equity method investments			$ 1,800		$ 4,300
Retained earnings of undistributed cumulative earnings in equity interests, net of tax		$ 11,200		$ 11,200
Euro Infrastructure Co [Member] | Euro​ Infrastructure​ Co Step Acquisition [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of additional interest in subsidiary acquired						51.00%