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v3.21.1

Business Segment Information (Details) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Segment Reporting Information [Line Items] |  |  |
Revenues | $ 649,642,000 | $ 809,162,000 | $ 876,282,000
Total assets: | 1,150,432,000 | 1,093,272,000 | 1,061,571,000
Long-Lived Assets | 619,291,000 | 617,114,000 | 643,059,000
Chain And Forged Attachments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 47,557,000 | 68,666,000 | 89,215,000
Hoists |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 394,682,000 | 492,126,000 | 518,806,000
Industrial cranes |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 37,025,000 | 44,149,000 | 59,085,000
Actuators and rotary unions |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 75,458,000 | 77,957,000 | 77,719,000
Digital Power Control and Delivery Systems [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 74,943,000 | 100,658,000 | 98,187,000
Elevator Application Drive Systems [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 19,977,000 | 25,606,000 | 25,548,000
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 0 | 0 | 7,722,000
United States |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 348,986,000 | 450,242,000 | 485,969,000
Total assets: | 540,184,000 | 518,914,000 | 496,580,000
Long-Lived Assets | 269,061,000 | 272,816,000 | 282,456,000
GERMANY |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 164,380,000 | 175,492,000 | 196,055,000
Total assets: | 435,638,000 | 438,210,000 | 429,859,000
Long-Lived Assets | 336,606,000 | 327,420,000 | 342,150,000
Europe, Middle East, and Africa (Excluding Germany) |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 90,415,000 | 121,600,000 | 127,453,000
Total assets: | 125,262,000 | 86,638,000 | 85,680,000
Long-Lived Assets | 8,359,000 | 9,561,000 | 10,163,000
Canada |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 15,443,000 | 21,984,000 | 22,206,000
Total assets: | 8,647,000 | 9,979,000 | 8,688,000
Long-Lived Assets | 1,395,000 | 1,192,000 | 1,319,000
Asia Pacific [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 13,829,000 | 14,193,000 | 17,749,000
Total assets: | 19,326,000 | 20,314,000 | 22,129,000
Long-Lived Assets | 2,235,000 | 4,928,000 | 5,781,000
Latin America [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 16,589,000 | 25,651,000 | 26,850,000
Total assets: | 21,375,000 | 19,217,000 | 18,635,000
Long-Lived Assets | $ 1,635,000 | $ 1,197,000 | 1,190,000
Chain and rigging tools | Chain And Forged Attachments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues |  |  | 12,289,000
Chain and rigging tools | Industrial cranes |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues |  |  | 14,184,000
Chain and rigging tools | Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues |  |  | $ 7,722,000

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