Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Operating Activities
Net income (loss)	$ 28,806	$ (247,734)	$ 52,862
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities
Intangibles amortization and depreciation	19,123	18,459	18,222
Loss (gain) on sale of property	(105)	(253)	(71)
Deferred taxes	4,144	(18,398)	8,456
Stock compensation expense	7,712	9,296	10,270
Change in fair value of interest-rate swaps	606	(530)	(2,968)
Goodwill impairment loss	0	317,797	0
Joint venture investment loss	2,670	0	0
Changes in operating assets and liabilities (net of acquisitions)
Accounts receivable, net	10,047	135	(10,393)
Inventories, net	1,231	(3,540)	459
Costs/estimated earnings in excess of billings on uncompleted contracts	(13,928)	19,133	(17,537)
All other assets	(3,217)	(2,822)	(1,468)
Billings in excess of costs/estimated earnings on uncompleted contracts	(908)	(6,603)	2,146
All other liabilities	(9,480)	(19,119)	(5,113)
Net cash provided by (used for) operating activities	46,701	65,821	54,865
Investing Activities
Capital expenditures	(6,323)	(7,633)	(5,149)
Capital disposals	389	280	119
Acquisition of businesses (payments)/recoveries	17	(39,770)	(12,811)
Prior merger-related (payments)/recoveries	(2,388)	(1,295)	(1,829)
Net cash provided by (used for) investing activities	(8,305)	(48,418)	(19,670)
Financing Activities
Proceeds (repayments) from long-term debt	7,735	(1,911)	(30,284)
Proceeds (repayments) from short-term debt	4,005	0	0
Deferred financing costs	(20)	(1,743)	(700)
Purchase of treasury stock	(37,214)	(15,292)	(485)
Proceeds from the exercise of stock options	0	0	9,239
Payment of dividends	(5,206)	(4,798)	(4,232)
Increase (decrease) in cash overdrafts	1,237	0	0
Net cash provided by (used for) financing activities	(29,463)	(23,744)	(26,462)
Foreign currency exchange impact on cash	(657)	(2,427)	1,594
Increase/(decrease) in cash and cash equivalents	8,276	(8,768)	10,327
Cash and cash equivalents at beginning of period	22,444	31,212	20,885
Cash and cash equivalents at end of period	30,720	22,444	31,212
Supplemental cash flow
Cash paid for interest	5,092	6,557	8,557
Cash paid for income taxes	10,097	29,437	21,513
Non-cash financing activities
Dividends payable	1,291	1,223	1,075
Capital leases	$ 33	$ 36	$ 143