Business Segment Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Net sales:	$ 579,643us-gaap_Revenues	$ 583,290us-gaap_Revenues	$ 597,263us-gaap_Revenues
Total assets:	566,324us-gaap_Assets	598,674us-gaap_Assets	566,867us-gaap_Assets
Long-lived assets:	231,692us-gaap_AssetsNoncurrent	218,832us-gaap_AssetsNoncurrent	184,447us-gaap_AssetsNoncurrent
Hoists
Segment Reporting Information [Line Items]
Net sales:	393,571	400,565	375,208
Chain and rigging tools
Segment Reporting Information [Line Items]
Net sales:	76,604	76,112	90,428
Industrial cranes
Segment Reporting Information [Line Items]
Net sales:	26,595	18,502	41,259
Actuators and rotary unions
Segment Reporting Information [Line Items]
Net sales:	72,021	78,642	80,028
Other
Segment Reporting Information [Line Items]
Net sales:	10,852	9,469	10,340
United States
Segment Reporting Information [Line Items]
Net sales:	345,244	338,744	353,565
Total assets:	304,888	374,033	365,497
Long-lived assets:	142,241	142,409	123,138
Europe
Segment Reporting Information [Line Items]
Net sales:	161,620	171,605	173,851
Total assets:	208,015	156,101	136,493
Long-lived assets:	79,496	65,994	56,633
Canada
Segment Reporting Information [Line Items]
Net sales:	21,731	21,723	21,637
Total assets:	8,055	15,635	26,952
Other
Segment Reporting Information [Line Items]
Net sales:	51,048	51,218	48,210
Total assets:	45,366	52,905	37,925
Long-lived assets:	$ 9,955	$ 10,429	$ 4,676

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.18)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 7

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer.

+ References

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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