Summary Financial Information (Statement of Financial Position) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Oct. 19, 2012
Current assets:
Cash and cash equivalents	$ 63,056	$ 112,309	$ 121,660	$ 89,473
Trade accounts receivable, less allowance for doubtful accounts	80,531	93,223
Inventories	103,187	97,576
Prepaid expenses and other	27,255	23,444
Total current assets	274,029	326,552
Net property, plant, and equipment	91,127	78,687
Goodwill	121,461	119,303	105,354
Other intangibles, net	19,104	20,842
Marketable securities	19,867	21,941
Deferred taxes on income	28,695	23,406
Other assets	12,041	7,943
Total assets	566,324	598,674	566,867
Trade accounts payable	33,406	35,359
Accrued liabilities	50,263	52,348
Current portion of long-term debt	13,292	1,588
Total current liabilities	96,961	89,295
Senior debt, less current portion	1,478	2,020
Subordinated debt	111,942	148,685
Other non-current liabilities	87,224	67,388
Total liabilities	297,605	307,388
Total shareholders’ equity	268,719	291,286	239,987	160,466
Total liabilities and shareholders’ equity	$ 566,324	$ 598,674
New Debt | Minimum
Stated interest rate percentage					7.875%