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Debt - Additional Information (Detail)			3 Months Ended			12 Months Ended
	Jan. 11, 2024 USD ($)	Dec. 11, 2019 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Oct. 03, 2021 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2019 USD ($)	Oct. 02, 2022 USD ($)	Oct. 03, 2021 CAD ($)	Mar. 31, 2019 CAD ($)	Mar. 31, 2018 USD ($)
Debt Instrument [Line Items]
Repayments of senior debt						$ 0	$ 0	$ 300,000,000
Loss on extinguishment of debt			$ 753,000	$ 753,000
Weighted-average interest rate			4.50%	5.20%		4.50%	5.20%
Short term borrowing outstanding amount			$ 28,502,000	$ 30,444,000		$ 28,502,000	$ 30,444,000
Short-term debt, weighted-average interest rates			4.70%	6.70%		4.70%	6.70%
Amortization expense included in interest expense						$ 0	$ 1,697,000	1,964,000
Deferred financing fees, net of accumulated amortization			$ 6,459,000	$ 8,035,000		6,459,000	8,035,000
Senior Notes
Debt Instrument [Line Items]
Long-term debt			600,000,000	600,000,000		600,000,000	600,000,000
Line of Credit
Debt Instrument [Line Items]
Available lines of credit			652,552,000	938,334,000		652,552,000	938,334,000
Outstanding amount			87,982,000	90,866,000		87,982,000	90,866,000
Convertible Notes Payable
Debt Instrument [Line Items]
Stand by letters of credit			5,584,000	3,919,000		5,584,000	3,919,000
2027 Notes | Senior Notes
Debt Instrument [Line Items]
Long-term debt		$ 300,000,000
Interest rate of debt instrument		4.375%
Proceeds from debt, net		$ 296,250,000
2032 Notes | Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 300,000,000
Interest rate of debt instrument	6.625%
Proceeds from debt, net	$ 297,000
2017 Revolver borrowings | Secured Debt
Debt Instrument [Line Items]
Face value of debt instrument													$ 150,000,000
Change in face amount									$ 299,105,000
2017 Revolver borrowings | Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity													$ 600,000,000
Amended 2017 Term Loan | Secured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity									449,105,000
Proceeds from senior notes				86,488,000
Repayments of senior debt				86,488,000
Amended 2017 Term Loan | Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity									99,105,000			$ 133,050,000
Amended 2017 Revolver | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity									700,000,000
Amended 2017 Revolver | Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Change in borrowing capacity									$ 100,000,000
Second Amended Term Loan, Canadian Dollars | Secured Debt
Debt Instrument [Line Items]
Face value of debt instrument					$ 84,229,000						$ 106,440,000
Second Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Face value of debt instrument					130,000,000
Change in face amount					(150,000,000)
Proceeds from senior notes				188,750,000
Available lines of credit			110,000,000			110,000,000
Repayments of senior notes				$ 188,750,000
Second Amended Revolver | Secured Debt
Debt Instrument [Line Items]
Available lines of credit			280,000			280,000
Second Amended Revolver | Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity					850,000,000
Change in borrowing capacity					$ 150,000,000
Second Amended Credit Facility | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Payments of debt issuance costs						4,412,000
2038 Notes
Debt Instrument [Line Items]
Interest paid						48,806,000	$ 48,080,000	58,368,000
Third Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Long-term debt								300,000,000
Maximum borrowing capacity										$ 300,000,000
Deferred costs and other assets								1,096,000
Available lines of credit			$ 100,000,000			$ 100,000,000
Debt issuance costs								$ 1,161,000
Third Amended Term Loan | Minimum | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, commitment fees percentage						0.175%
Third Amended Term Loan | Maximum | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, commitment fees percentage						0.35%
Fourth Amended Credit Facility
Debt Instrument [Line Items]
Debt instrument, covenant, leverage ratio			4.50			4.50
Debt instrument, covenant, leverage ratio			4.00			4.00
Fourth Amended Credit Facility | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Percentage of capital stock collateralizing debt						65.00%
Fourth Amended Credit Facility | Minimum
Debt Instrument [Line Items]
Debt instrument, covenant, leverage ratio			4.00			4.00
Debt instrument, covenant, leverage ratio			3.50			3.50
Fourth Amended Credit Facility | Maximum
Debt Instrument [Line Items]
Debt instrument, covenant, leverage ratio			4.25			4.25
Consideration transferred						$ 250,000,000
Debt instrument, covenant, leverage ratio			4.25			4.25
Fourth Amended Credit Facility | Revolving Credit Facility | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Optional increase in line of credit maximum borrowing capacity			$ 350,000,000			$ 350,000,000
Federal Funds Effective Rate | Second Amended Credit Facility | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						0.50%
Federal Funds Effective Rate | Third Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						0.50%
Eurocurrency Base Rate | Second Amended Credit Facility | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						1.00%
Eurocurrency Base Rate | Third Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						1.00%
Canadian Dollar Offered Rate (CDOR) | Second Amended Credit Facility | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						0.50%
Secured Overnight Financing Rate (SOFR) | Second Amended Credit Facility | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						1.25%
Secured Overnight Financing Rate (SOFR) | Second Amended Credit Facility | Minimum | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						1.125%
Secured Overnight Financing Rate (SOFR) | Second Amended Credit Facility | Maximum | Line Of Credit And Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						2.25%
Secured Overnight Financing Rate (SOFR) | Third Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						0.10%
Secured Overnight Financing Rate (SOFR) | Third Amended Term Loan | Secured Debt | Net Leverage Ratio
Debt Instrument [Line Items]
Interest at a floating rate						1.50%
Secured Overnight Financing Rate (SOFR) | Third Amended Term Loan | Minimum | Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						1.375%
Secured Overnight Financing Rate (SOFR) | Third Amended Term Loan | Maximum | Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						2.50%
Base Rate | Third Amended Term Loan | Minimum | Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						0.375%
Base Rate | Third Amended Term Loan | Maximum | Secured Debt
Debt Instrument [Line Items]
Interest at a floating rate						1.50%
Debt Instrument, Redemption, Period One | 2027 Notes | Senior Notes
Debt Instrument [Line Items]
Redemption price, percentage		100.00%
Debt Instrument, Redemption, Period One | 2032 Notes | Senior Notes
Debt Instrument [Line Items]
Redemption price, percentage	100.00%
Debt Instrument, Redemption, Period One | Second Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Periodic payment						$ 2,607,000
Debt Instrument, Redemption, Period One | Third Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Periodic payment						3,750,000
Debt Instrument, Redemption, Period Two | 2027 Notes | Senior Notes
Debt Instrument [Line Items]
Redemption price, percentage		100.00%
Debt Instrument, Redemption, Period Two | 2032 Notes | Senior Notes
Debt Instrument [Line Items]
Redemption price, percentage	100.00%
Debt Instrument, Redemption, Period Two | Second Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Periodic payment						3,911,000
Debt Instrument, Redemption, Period Two | Third Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Periodic payment						5,625,000
Debt Instrument, Redemption, Period Three | 2027 Notes | Senior Notes
Debt Instrument [Line Items]
Redemption price, percentage		101.00%
Debt Instrument, Redemption, Period Three | 2032 Notes | Senior Notes
Debt Instrument [Line Items]
Redemption price, percentage	106.625%
Debt instrument, redemption price, percentage of principal amount redeemed	40.00%
Debt Instrument, Redemption, Period Three | Second Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Periodic payment						5,215,000
Debt Instrument, Redemption, Period Three | Third Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Periodic payment						7,500,000
Debt Instrument, Redemption, Period Four | 2032 Notes | Senior Notes
Debt Instrument [Line Items]
Redemption price, percentage	101.00%
Debt Instrument, Redemption, Period Four | Second Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Periodic payment						156,448,000
Debt Instrument, Redemption, Period Four | Third Amended Term Loan | Secured Debt
Debt Instrument [Line Items]
Periodic payment						$ 232,500,000

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