Equity Method Investments and Related-Party Transactions - Schedule of Related Party Transactions (Detail) - Euro Infrastructure Co [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Mar. 31, 2020
Related Party Transaction [Line Items]
Revenue	$ 8,319		$ 9,743	$ 8,469
Expense	4,163	$ 1,815	12,331	10,720
Cash received	1,773	6,253	9,995	8,605
Cash paid	7,867	$ 3,198	20,947	$ 10,654
Collections in excess of revenues and deferred revenues	$ 6,084		$ 6,084		$ 5,832
Accounts payable					$ 5,446

Amount for accounts payable to related parties.

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