Debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Summary of Debt

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

	As of December 31, 2014					As of December 31, 2013
	Balance		Interest Rate			Balance		Interest Rate
Revolving credit facility	$	593,490		Variable		$	105,000		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		2,522					2,873
		352,522					352,873
2013 Senior Unsecured Notes(A)		241,960		5.75	%		274,860		5.75	%
2014 Senior Unsecured Notes		300,000		5.50	%		—
Term loans		138,682		Various			113,948		Various
	$	2,201,654				$	1,421,681

Principal Payments Due for Debt

As of December 31, 2014, principal payments due on our debt (which exclude the effects of any discounts or premiums recorded) are as follows:

2015	$	283
2016		125,298
2017		320
2018		606,271
2019		125,000
Thereafter		1,341,960
Total	$	2,199,132

(A) These notes are Euro-denominated and reflect the exchange rates at December 31, 2014 and 2013, respectively.