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v3.20.1

Business Segment Information (Details) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Revenues | $ 809,162,000 | $ 876,282,000 | $ 839,419,000
Total assets: | 1,093,272,000 | 1,061,571,000 | 1,142,446,000
Long-Lived Assets | 617,114,000 | 643,059,000 | 724,277,000
Chain And Forged Attachments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 68,666,000 | 89,215,000 | 79,884,000
Hoists |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 520,217,000 | 546,924,000 | 532,925,000
Industrial cranes |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 16,058,000 | 30,967,000 | 35,071,000
Actuators and rotary unions |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 77,957,000 | 77,719,000 | 71,525,000
Digital Power Control and Delivery Systems [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 100,658,000 | 98,187,000 | 84,565,000
Elevator Application Drive Systems [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 25,606,000 | 25,548,000 | 24,423,000
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 0 | 7,722,000 | 11,026,000
United States |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 450,242,000 | 485,969,000 | 455,483,000
Total assets: | 518,914,000 | 496,580,000 | 477,712,000
Long-Lived Assets | 272,816,000 | 282,456,000 | 293,576,000
GERMANY |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 175,492,000 | 196,055,000 | 195,807,000
Total assets: | 438,210,000 | 429,859,000 | 514,244,000
Long-Lived Assets | 327,420,000 | 342,150,000 | 409,827,000
Europe, Middle East, and Africa (Excluding Germany) |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 121,600,000 | 127,453,000 | 120,887,000
Total assets: | 86,638,000 | 85,680,000 | 99,598,000
Long-Lived Assets | 9,561,000 | 10,163,000 | 11,356,000
Canada |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 21,984,000 | 22,206,000 | 20,672,000
Total assets: | 9,979,000 | 8,688,000 | 7,469,000
Long-Lived Assets | 1,192,000 | 1,319,000 | 1,172,000
Asia Pacific [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 14,193,000 | 17,749,000 | 19,082,000
Total assets: | 20,314,000 | 22,129,000 | 23,630,000
Long-Lived Assets | 4,928,000 | 5,781,000 | 6,847,000
Latin America [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 25,651,000 | 26,850,000 | 27,488,000
Total assets: | 19,217,000 | 18,635,000 | 19,793,000
Long-Lived Assets | $ 1,197,000 | 1,190,000 | $ 1,499,000
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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