Equity Based Compensation Options (Details) (Stock Options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock Option Activity [Line Items]
Number of years after which restrictions lapse	4 years
Stock Options Outstanding [Roll Forward]
Beginning of period	1,607	1,661	1,815
Exercised, redeemed or exchanged	(1)	(7)	(18)
Forfeited	(82)	(47)	(136)
End of period	1,524	1,607	1,661
Vested	1,524
Unvested	0
Weighted average exercise price	$ 16.00
Weighted average remaining contractual term	4 years 9 months
Total intrinsic value of exercised options	$ 0
Total fair value of vested options	11,173
Aggregate intrinsic value of outstanding options	$ 0
Weighted average grant date fair value [Member]
Weighted Average Grant Date Fair Value [Roll Forward]
Beginning of period	$ 7.33	7.33	7.33
Exercised	$ 7.33	7.33	7.33
Forfeited	$ 7.33	7.33	7.33
End of period	$ 7.33	7.33	7.33