Subsequent Event (Details) (Subsequent Event, EUR €) In Millions, unless otherwise specified	1 Months Ended
	May 31, 2015
Working Capital Facility
Subsequent Event [Line Items]
Borrowing capacity	2.5
Amended and Restated Facilities Agreement, Facility A | Term Loan A
Subsequent Event [Line Items]
Borrowing capacity	17.5
Amended and Restated Facilities Agreement, Facility A | London Interbank Offered Rate (LIBOR) | Line of Credit
Subsequent Event [Line Items]
Basis spread on variable rate	1.80%
Amended and Restated Facilities Agreement, Facility B | Term Loan B
Subsequent Event [Line Items]
Borrowing capacity	11.6
Amended and Restated Facilities Agreement, Facility B | London Interbank Offered Rate (LIBOR) | Line of Credit
Subsequent Event [Line Items]
Basis spread on variable rate	2.50%
Amended and Restated Facilities Agreement, Facility C | Line of Credit
Subsequent Event [Line Items]
Borrowing capacity	22.5
Amended and Restated Facilities Agreement, Facility C | London Interbank Offered Rate (LIBOR) | Line of Credit
Subsequent Event [Line Items]
Basis spread on variable rate	2.20%