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Debt - Loan Contract (Details) - AFT Hungary - Loan Contract - Erste Bank Hungary
$ in Millions
Mar. 31, 2016
USD ($)
Mar. 23, 2016
EUR (€)
Debt    
Loan amount   € 4,000,000
Interest rate (as a percent)   0.98%
Semi-annual payment of debt   € 400,000
Frequency of payments   semi-annual
Amended & Restated Credit Agreement    
Debt    
Repayment of debt obligations | $ $ 3.0