Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Accounting Policy Information (Details)

v3.3.0.814
Basis of Presentation and Accounting Policy Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Mar. 31, 2015
Business Acquisition [Line Items]          
Marketing, general and administrative and engineering $ 19,005 $ 20,008 $ 38,854 $ 38,342  
Pro Forma | New Accounting Pronouncement, Early Adoption, Effect          
Business Acquisition [Line Items]          
Debt instrument, increase (decrease), other $ (1,088)       $ (1,217)
Correction of Marketing, General and Administrative and Engineering Expense          
Business Acquisition [Line Items]          
Marketing, general and administrative and engineering     $ (498)