Debt (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Debt

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

	As of December 31, 2012				As of December 31, 2011
	Balance			Interest Rate	Balance			Interest Rate
Revolving credit facilities	$	125,000		Variable	$	89,600		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		200,000		6.375%		—
Exchangeable senior notes
Principal amount		11,000		9.250%		11,000		9.250%
Unamortized discount		(37	)			(180	)
		10,963				10,820
Term loans		114,197		Various		14,429		6.200%
	$	1,025,160			$	689,849

Principal Payments Due for Debt

As of December 31, 2012, principal payments due on our debt (which exclude the effects of any discounts recorded) are as follows:

2013	$	11,249
2014		265
2015		125,283
2016		225,299
2017		320
Thereafter		662,781
Total	$	1,025,197