Debt (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Summary of Debt

The following is a summary of our debt (dollar amounts in thousands):

	As of June 30, 2015					As of December 31, 2014
	Balance		Interest Rate			Balance		Interest Rate
Revolving credit facility (A)	$	674,034		Variable		$	593,490		Variable
2006 Senior Unsecured Notes		125,000		Various			125,000		Various
2011 Senior Unsecured Notes		450,000		6.875	%		450,000		6.875	%
2012 Senior Unsecured Notes:
Principal amount		350,000		6.375	%		350,000		6.375	%
Unamortized premium		2,345		—			2,522		—
		352,345					352,522
2013 Senior Unsecured Notes (B)		222,940		5.750	%		241,960		5.750	%
2014 Senior Unsecured Notes		300,000		5.500	%		300,000		5.500	%
Term loans		138,542		Various			138,682		Various
	$	2,262,861				$	2,201,654

(A) As of June 30, 2015, we had €301.0 million of outstanding borrowings on the revolving credit facility, or $335.5 million based on the exchange rate in effect at June 30, 2015.

(B) The change in balance from period to period is due to foreign currency fluctuations. These notes are Euro-denominated and reflect the exchange rate at June 30, 2015 and December 31, 2014, respectively.

Principal Payments Due for Debt

As of June 30, 2015, principal payments due for our debt (which exclude the effects of any premiums recorded) are as follows (in thousands):

2015	$	142
2016		125,299
2017		320
2018		686,815
2019		125,000
Thereafter		1,322,940
Total	$	2,260,516