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Long-term Debt and Other Long-Term Liabilities - Summary of Detailed Information About Borrowings (Parenthetical) (Details)
 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Annual Interest Rate 4.9% Mortgage Payable Due August 1, 2021    
Disclosure Of Detailed Information About Borrowings [Line Items]    
Term of mortgage payable 5 years 5 years
Term of amortization 7 years 7 years
Interest rate 4.90% 4.90%
Borrowings, maturity August 1, 2021 August 1, 2021
Annual Interest Rate of 5.3% Mortgage Payable Due December 1, 2019    
Disclosure Of Detailed Information About Borrowings [Line Items]    
Term of mortgage payable 5 years 5 years
Term of amortization 7 years 7 years
Interest rate 5.30% 5.30%
Borrowings, maturity December 1, 2019 December 1, 2019
Annual Interest Rate of 4.8% Mortgage Payable Due December 1, 2020    
Disclosure Of Detailed Information About Borrowings [Line Items]    
Term of mortgage payable 5 years [1] 5 years
Term of amortization 7 years 7 years
Interest rate 4.80% 4.80%
Borrowings, maturity December 1, 2020 December 1, 2020
Term Loan 10% Due October 1, 2024    
Disclosure Of Detailed Information About Borrowings [Line Items]    
Interest rate 10.00% 10.00%
Borrowings, maturity October 1, 2024 October 1, 2024
Interest Rate 5.9%-17.1% Finance Lease | Minimum    
Disclosure Of Detailed Information About Borrowings [Line Items]    
Interest rate 5.90% 5.90%
Borrowing term 2 years 2 years
Interest Rate 5.9%-17.1% Finance Lease | Maximum    
Disclosure Of Detailed Information About Borrowings [Line Items]    
Interest rate 17.10% 17.10%
Borrowing term 5 years 5 years
[1] five-year