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Restructuring, Exit and Other Charges - Additional Information (Details) |  |  | 3 Months Ended | 12 Months Ended |
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Jun. 29, 2022 USD ($) Employee | Mar. 03, 2022 USD ($) | Mar. 31, 2025 USD ($) | Jan. 03, 2021 USD ($) | Mar. 31, 2025 USD ($) Employee | Mar. 31, 2024 USD ($) Employee | Mar. 31, 2023 USD ($) Employee | Mar. 31, 2022 USD ($) Employee | Mar. 31, 2021 USD ($) | Nov. 08, 2023 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Write-off of assets relating to restructuring and other exit charges |  |  |  |  | $ (1,973,000) | $ (24,229,000) | $ (8,920,000) |  |  |
Loss on assets held for sale |  |  |  |  | 4,634,000 | 0 | 0 |  |  |
Restructuring and other exit charges |  |  |  |  | 14,428,000 | 28,103,000 | 16,439,000 |  |  |
Restructuring charges, cash charges related to employee severance and other charges |  |  |  |  | (8,292,000) | 6,064,000 | 2,224,000 |  |  |
Employee Severance |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Exit charges |  |  |  |  | 7,454,000 | 20,097,000 | 14,752,000 |  |  |
Restructuring charges |  |  |  |  | 6,974,000 | 8,006,000 | 1,687,000 |  |  |
Restructuring and other exit charges |  |  |  |  | 14,428,000 | 28,103,000 | 16,439,000 |  |  |
Closure of Facility in Hagen, Germany |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  | $ 60,000,000 |  |
Expected reduction in number of employees | Employee |  |  |  |  |  |  |  | 200 |  |
Fixed asset impairment |  |  |  | $ 3,975,000 |  |  |  |  |  |
Assets held for sale |  |  | $ 7,000,000 |  | 7,000,000 |  |  |  |  |
Loss on assets held for sale |  |  | (4,867,000) |  |  |  |  |  |  |
Fair value of fixed assets |  |  | 2,113,000 | $ 14,456,000 | 2,113,000 |  |  |  |  |
Closure of Facility in Hagen, Germany | Fixed Asset Write Off, Non-Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  | $ 3,522,000 | $ 7,946,000 |
Closure of Facility in Hagen, Germany | Severance, Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  | 8,069,000 | $ 23,331,000 |
Closure of Facility in Hagen, Germany | Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  | 40,000,000 |  |
Closure of Facility in Hagen, Germany | Inventory, Non-Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  | 20,000,000 |  |
Cost of goods sold |  |  |  |  |  |  |  | $ 960,000 |  |
Closure of Facility in Hagen, Germany | Site Clean Up, Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  | 3,625,000 | 2,118,000 | 2,207,000 |  |  |
Closure of Facility in Hagen, Germany | Accelerated Depreciation, Non Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  | 598,000 | 526,000 | 562,000 |  |  |
Closure Of Facility In Ooltewah, Tennessee |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges | $ 18,500,000 |  |  |  |  |  |  |  |  |
Expected reduction in number of employees | Employee | 165 |  |  |  |  |  |  |  |  |
Closure Of Facility In Ooltewah, Tennessee | Non Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges | $ 9,300,000 |  |  |  |  |  | 7,261,000 |  |  |
Closure Of Facility In Ooltewah, Tennessee | Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges | $ 9,200,000 |  | $ 474,000 |  | 474,000 | 4,399,000 | 2,735,000 |  |  |
Closure Of Facility In Ooltewah, Tennessee | Inventories, Non Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  | 1,613,000 |  |  |
Closure of Facility in Sylmar, California |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Write-off of assets relating to restructuring and other exit charges |  | $ (9,769,000) |  |  |  |  |  |  |  |
Exit charges |  |  |  |  |  | 13,661,000 |  |  |  |
Restructuring charges |  |  |  |  |  | 3,892,000 |  |  |  |
Closure of Facility in Sylmar, California | Non Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  | 377,000 |  |  |  |
Closure of Facility in Sylmar, California | Severance, Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  | 931,000 | 7,155,000 | 1,682,000 |  |  |
Closure of Facility in Sylmar, California | Contract Assets, Non-Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  | 417,000 |  |  |
Closure of Facility in Sylmar, California | Inventory, Non-Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  | 3,098,000 |  |  |  |
OutBack And Mojave Brands |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  |  |  | $ 24,500,000
OutBack And Mojave Brands | Employee Severance |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  |  |  | 900,000
Write-off of assets relating to restructuring and other exit charges |  |  |  |  |  | (689,000) |  |  |  |
OutBack And Mojave Brands | Non Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  |  |  | 23,600,000
Write-off of assets relating to restructuring and other exit charges |  |  |  |  | (333,000) | (551,000) |  |  |  |
OutBack And Mojave Brands | Inventories, Non Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Write-off of assets relating to restructuring and other exit charges |  |  |  |  | (275,000) | (17,075,000) |  |  |  |
Closure Of Facility In Spokane, Washington |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  |  |  | 3,600,000
Closure Of Facility In Spokane, Washington | Employee Severance |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  |  |  | 1,400,000
Write-off of assets relating to restructuring and other exit charges |  |  |  |  |  | (1,343,000) |  |  |  |
Closure Of Facility In Spokane, Washington | Fixed Asset Write Off, Non-Cash Charges |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Expected remaining restructuring charges |  |  |  |  |  |  |  |  |  | $ 2,200,000
Write-off of assets relating to restructuring and other exit charges |  |  |  |  |  | (2,066,000) |  |  |  |
Energy Systems | Employee Severance |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Severance payments |  |  |  |  | $ 3,364,000 | $ 4,468,000 | 1,230,000 |  |  |
Approximate number of positions eliminated | Employee |  |  |  |  | 160 | 146 |  |  |  |
Exit charges |  |  |  |  | $ 993,000 | $ 4,312,000 | 123,000 |  |  |
Restructuring charges |  |  |  |  | 5,001,000 | 4,526,000 | 1,318,000 |  |  |
Restructuring and other exit charges |  |  |  |  | 5,994,000 | $ 8,838,000 | $ 1,441,000 |  |  |
Motive Power | Employee Severance |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Severance payments |  |  |  |  | $ 1,492,000 |  |  |  |  |
Approximate number of positions eliminated | Employee |  |  |  |  | 66 | 37 | 9 |  |  |
Exit charges |  |  |  |  | $ 4,144,000 | $ 8,253,000 | $ 12,537,000 |  |  |
Restructuring charges |  |  |  |  | 1,575,000 | 3,445,000 | 327,000 |  |  |
Restructuring and other exit charges |  |  |  |  | 5,719,000 | 11,698,000 | 12,864,000 |  |  |
Specialty | Employee Severance |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |
Severance payments |  |  |  |  | $ 397,000 |  |  |  |  |
Approximate number of positions eliminated | Employee |  |  |  |  | 4 |  |  |  |  |
Exit charges |  |  |  |  | $ 2,317,000 | 7,532,000 | 2,092,000 |  |  |
Restructuring charges |  |  |  |  | 398,000 | 35,000 | 42,000 |  |  |
Restructuring and other exit charges |  |  |  |  | $ 2,715,000 | $ 7,567,000 | $ 2,134,000 |  |  |

X
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482130/360-10-45-4 + Details
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(2)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 924 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1 + Details
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