Debt Debt (Tables)

12 Months Ended

Dec. 31, 2013

The components of our borrowings are as follows:



	December 31, 2013		December 31, 2012
	(in thousands)
Credit Facilities
USD denominated term loan	$	258,750	$	277,500
Multicurrency revolving line of credit	120,000		140,000
Total debt	378,750		417,500
Less: Current portion of debt	26,250		18,750
Long-term debt	$	352,500	$	398,750

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



	Minimum Payments
	(in thousands)
2014	$	26,250
2015	30,000
2016	322,500
2017	—
2018	—
Total minimum payments on debt	$	378,750

Total credit facility repayments were as follows:



	Year Ended December 31,
	2013		2012		2011
	(in thousands)
2011 credit facility term loan	$	18,750	$	15,002	$	7,500
2011 credit facility multicurrency revolving line of credit⁽¹⁾	55,000		100,000		40,000
2007 credit facility term loans	—		—		406,950
2007 credit facility revolving line of credit⁽²⁾	—		—		170,000
Total credit facility repayments	$	73,750	$	115,002	$	624,450


⁽¹⁾	We borrowed $35.0 million and $80.0 million under the multicurrency revolving line of credit during 2013 and 2012, respectively.


⁽²⁾	See repayment of the convertible senior subordinated notes below.

At December 31, 2013 and 2012, unamortized prepaid debt fees were as follows:



	December 31, 2013		December 31, 2012
	(in thousands)
Unamortized prepaid debt fees	$	3,810	$	5,367

The interest expense relating to both the contractual interest coupon and amortization of the discount on the liability component is as follows:



	Year Ended December 31,
	2013		2012		2011
	(in thousands)
Contractual interest coupon	$	—	$	—	$	3,420
Amortization of the discount on the liability component	—		—		5,336
Total interest expense on convertible notes	$	—	$	—	$	8,756