Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Guarantor and Non-Guarantor Financial Statements - Narrative (Details)
12 Months Ended
Mar. 31, 2018
USD ($)
business
Mar. 31, 2017
USD ($)
Sep. 28, 2016
USD ($)
Condensed Financial Statements, Captions [Line Items]      
Number of wholly-owned subsidiaries | business 4    
Convertible notes, net of debt issuance costs and discounts of $1,827 and $6,315, respectively      
Condensed Financial Statements, Captions [Line Items]      
Debt face amount | $ $ 5,700,000 $ 16,000,000 $ 16,000,000
Interest rate     8.75%