Segment Information - Summarized Financial Information for Joint Venture Unconsolidated (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024
Related Party Transaction [Line Items]
Revenue	$ 608,689	$ 601,521
Gross Margin	186,868	175,995
Earnings Before Income Taxes	170,934	155,449
Current Assets	712,989		$ 627,693
Current Liabilities	290,550		239,409
Joint Venture [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Related Party Transaction [Line Items]
Revenue	58,620	54,246
Gross Margin	16,424	8,538
Earnings Before Income Taxes	15,548	$ 6,364
Current Assets	123,487		111,164
Noncurrent Assets	172,875		158,618
Current Liabilities	$ 49,102		$ 27,994