Debt (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

The components of our borrowings are as follows:

	December 31, 2015		December 31, 2014
	(in thousands)
Credit Facilities
USD denominated term loan	$	219,375	$	232,500
Multicurrency revolving line of credit	151,837		91,469
Total debt	371,212		323,969
Less: Current portion of debt	11,250		30,000
Long-term debt	$	359,962	$	293,969

Schedule of Maturities of Long-term Debt [Table Text Block]

Required minimum principal payments on our outstanding credit facilities are as follows:

Year Ending December 31,	Minimum Payments
	(in thousands)
2016	$	11,250
2017	14,063
2018	19,687
2019	22,500
2020	303,712
Total minimum payments on debt	$	371,212

Schedule of Long-Term Debt Repayments [Table Text Block]

Total credit facility repayments were as follows:

	Year Ended December 31,
	2015		2014		2013
	(in thousands)
Term loan	$	13,125	$	26,250	$	18,750
Multicurrency revolving line of credit(1)	49,873		76,188		55,000
Total credit facility repayments	$	62,998	$	102,438	$	73,750

⁽¹⁾  We borrowed $113.5 million, $47.7 million, and $35.0 million under the multicurrency revolving line of credit during 2015, 2014 and 2013, respectively.

Prepaid Debt Fees and Accrued Interest Expense [Table Text Block]

Total unamortized prepaid debt fees were as follows:

	December 31, 2015		December 31, 2014
	(in thousands)
Unamortized prepaid debt fees	$	4,175	$	2,298