Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

The components of our borrowings are as follows:

	December 31, 2016		December 31, 2015
	(in thousands)
Credit Facilities
USD denominated term loan	$	208,125	$	219,375
Multicurrency revolving line of credit	97,167		151,837
Total debt	305,292		371,212
Less: current portion of debt	14,063		11,250
Less: unamortized prepaid debt fees - term loan	769		1,047
Long-term debt	$	290,460	$	358,915

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)
2017	$	14,063
2018	19,687
2019	22,500
2020	249,042
2021	—
Total minimum payments on debt	$	305,292

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

Total credit facility repayments were as follows:

	Year Ended December 31,
	2016		2015		2014
	(in thousands)
Term loan	$	11,250	$	13,125	$	26,250
Multicurrency revolving line of credit	67,869		49,873		76,188
Total credit facility repayments	$	79,119	$	62,998	$	102,438