Summary Financial Information (Statement of Financial Position) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Oct. 19, 2012
Current assets:
Cash and cash equivalents	$ 77,591	$ 51,603	$ 63,056	$ 112,309
Trade accounts receivable, less allowance for doubtful accounts	111,569	83,812
Inventories	130,643	118,049
Prepaid expenses and other	21,147	19,265
Total current assets	340,950	272,729
Net property, plant, and equipment	113,028	104,790
Goodwill	319,299	170,716	121,461
Other intangibles, net	256,183	122,129
Marketable securities	7,686	18,186
Deferred taxes on income	61,857	73,158
Other assets	14,840	11,143
Total assets	1,113,843	772,851	566,324
Trade accounts payable	40,994	36,061
Accrued liabilities	97,397	53,210
Current portion of long-term debt	52,568	43,246
Total current liabilities	190,959	132,517
Senior debt, less current portion	41	844
Other non-current liabilities	212,783	129,639
Total liabilities	772,493	486,542
Total shareholders’ equity	341,350	286,309	$ 268,719	$ 291,286
Total liabilities and shareholders’ equity	$ 1,113,843	$ 772,851
New Debt | Minimum
Stated interest rate percentage					7.875%