Quarterly report pursuant to Section 13 or 15(d)

Guarantor and Non-Guarantor Financial Statements - Narrative (Details)

v3.8.0.1
Guarantor and Non-Guarantor Financial Statements - Narrative (Details)
6 Months Ended
Sep. 30, 2017
USD ($)
business
Sep. 28, 2016
USD ($)
Condensed Financial Statements, Captions [Line Items]    
Number of wholly-owned subsidiaries | business 4  
Convertible notes    
Condensed Financial Statements, Captions [Line Items]    
Debt face amount | $ $ 10,000,000 $ 16,000,000
Interest rate   8.75%