XML 80 R58.htm IDEA: XBRL DOCUMENT v3.20.1
Debt - Mitsubishi Bank Loans (Details)
$ in Millions
1 Months Ended
Feb. 25, 2015
USD ($)
Feb. 25, 2015
JPY (¥)
Jan. 31, 2018
USD ($)
Jan. 31, 2018
JPY (¥)
Mar. 31, 2017
USD ($)
Mar. 31, 2020
USD ($)
Mar. 31, 2020
JPY (¥)
Mar. 31, 2017
JPY (¥)
Feb. 25, 2015
JPY (¥)
Notes Payable to Banks | Mitsubishi Bank Term Loan A                  
Debt Instrument [Line Items]                  
Debt, aggregate principal amount $ 4.4               ¥ 500,000,000.0
Notes Payable to Banks | Mitsubishi Bank Term Loan B                  
Debt Instrument [Line Items]                  
Debt, aggregate principal amount 9.2               ¥ 1,000,000,000
Debt, periodic principal payments 0.1 ¥ 8,300,000              
Debt, lump sum payment on the maturity date $ 0.1 ¥ 8,400,000              
Notes Payable to Banks | Mitsubishi Bank Term Loan B | Tokyo interbank offer rate                  
Debt Instrument [Line Items]                  
Debt instrument, basis spread 1.40% 1.40%              
Notes Payable to Banks | Mitsubishi Bank Loans                  
Debt Instrument [Line Items]                  
Loan structuring fee including consumption tax $ 0.4 ¥ 40,500,000              
Notes Payable to Banks | Mitsubishi Bank Loans | Tokyo interbank offer rate                  
Debt Instrument [Line Items]                  
Debt instrument, basis spread 1.40% 1.40%              
Notes Payable to Banks | 2015 Mitsubishi Bank Loan                  
Debt Instrument [Line Items]                  
Long-term debt           $ 4.5 ¥ 491,700,000    
Notes Payable to Banks | 2017 Mitsubishi Bank Loan                  
Debt Instrument [Line Items]                  
Debt, aggregate principal amount         $ 6.4     ¥ 690,000,000.0  
Long-term debt           $ 4.3 ¥ 460,000,000.0    
Debt instrument, term         72 months        
Line of credit facility, outstanding         $ 6.4     ¥ 690,000,000.0  
Notes Payable to Banks | 2017 Mitsubishi Bank Loan | Tokyo interbank offer rate                  
Debt Instrument [Line Items]                  
Debt instrument, basis spread         1.00%        
Mitsubishi Bank | Mitsubishi Bank Term Loan A                  
Debt Instrument [Line Items]                  
Repayments of lines of credit     $ 4.4 ¥ 500,000,000.0