Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)
Operating Activities
Net income (loss)	$ (171,102)	$ 15,342	$ (115,873)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities
Intangibles amortization	10,311	10,549	12,024
Depreciation	8,562	6,978	6,187
Loss (gain) on sale of property	16	(143)	92
Deferred taxes	(26,145)	4,656	(8,672)
Stock compensation expense	5,065	6,009	6,589
Change in fair value of interest-rate swaps	(399)	(1,147)	(832)
Asset impairment loss	192,186	0	154,429
Joint venture investment loss	0	0	822
Provision for obsolete inventory	7,735	2,260	2,522
Provision for (recovery of) doubtful accounts	3,819	1,638	4,324
Changes in operating assets and liabilities (net of acquisitions)
Accounts receivable	7,819	(108)	(7,409)
Inventories	4,048	(5,745)	996
Costs/estimated earnings in excess of billings on uncompleted contracts	12,682	9,892	11,767
All other assets	(280)	(14,152)	(778)
Billings in excess of costs/estimated earnings on uncompleted contracts	4,035	580	2,543
Accounts payable	(7,568)	1,786	(1,360)
All other liabilities	(13,582)	8,103	(11,025)
Net cash provided by (used for) operating activities	37,202	46,498	56,346
Investing Activities
Capital expenditures	(10,477)	(8,515)	(7,338)
Capital disposals	162	208	16
Acquisition of businesses (payments)/recoveries	(773)	0	0
Prior merger-related (payments)/recoveries	0	(780)	(779)
Net cash provided by (used for) investing activities	(11,088)	(9,087)	(8,101)
Financing Activities
Proceeds (repayments) from long-term debt	(17,788)	(24,475)	(27,382)
Proceeds (repayments) from short-term debt	4,063	(2,291)	2,267
Purchase of treasury stock	(7,154)	(8,076)	(21,794)
Proceeds from the exercise of stock options	0	0	988
Payment of dividends	(6,617)	(6,034)	(5,576)
Increase (decrease) in cash overdrafts	(168)	(321)	(524)
Net cash provided by (used for) financing activities	(27,664)	(41,197)	(52,021)
Foreign currency exchange impact on cash	1,513	(3,490)	3,866
Increase/(decrease) in cash and cash equivalents	(37)	(7,276)	90
Cash and cash equivalents at beginning of period	23,534	30,810	30,720
Cash and cash equivalents at end of period	23,497	23,534	30,810
Supplemental cash flow
Cash paid for interest	5,876	5,450	5,527
Cash paid for income taxes	3,482	8,259	13,651
Non-cash financing activities
Dividends payable	1,652	1,537	1,400
Capital leases	$ 437	$ 2,028	$ 260