Organization and Significant Accounting Policies Organization and Significant Accounting Policies - New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (current)		$ 0
Total current assets	$ 352,547	360,565
Deferred income taxes (non-current)	8,397	9,774
Total assets	702,544	746,693
Income taxes payable and deferred income taxes (current)		884
Total current liabilities	123,754	132,087
Deferred income taxes (non-current)	2,820	2,384
Total liabilities and stockholders' equity	$ 702,544	746,693
ASU No. 2015-17 | As Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (current)		10,762
Total current assets		371,327
Deferred income taxes (non-current)		5,111
Total assets		752,792
Income taxes payable and deferred income taxes (current)		1,017
Total current liabilities		132,220
Deferred income taxes (non-current)		8,350
Total liabilities and stockholders' equity		752,792
ASU No. 2015-17 | Retrospective Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes (current)		(10,762)
Total current assets		(10,762)
Deferred income taxes (non-current)		4,663
Total assets		(6,099)
Income taxes payable and deferred income taxes (current)		(133)
Total current liabilities		(133)
Deferred income taxes (non-current)		(5,966)
Total liabilities and stockholders' equity		$ (6,099)