Debt and Capital Lease Obligations (Details 5) (USD $)	Dec. 31, 2012
Debt Instrument [Line Items]
2013	$ 355,942,000
2014	1,596,000
2015	47,663,000
2016	37,837,000
2017	0
Total	443,038,000	[1]
Unamortized discount	2,200,000
Mandatorily Redeemable Preferred Stock
Debt Instrument [Line Items]
Unamortized discount	$ 22,300,000

[1] Excludes unamortized discount of $2.2 million on long-term debt and $22.3 million on mandatorily redeemable preferred stock. See note 7.