Stock-Based Compensation (Stock Option Activity) (Details) (Stock Option, USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Options, Outstanding [Roll Forward]
Granted (Shares)	35,492
Weighted Average Exercise Price [Roll Forward]
Granted (In dollars per share)	$ 0.17
Stock Incentive Plan and Omnibus Plan [Member]
Options, Outstanding [Roll Forward]
Outstanding at January 1, 2012 (Shares)	15,142,061
Granted (Shares)	35,492
Exercised (Shares)	(1,740,447)
Forfeited or Expired (Shares)	(248,431)
Outstanding at December 31, 2012 (Shares)	13,188,675	15,142,061
Exercisable at December 31, 2012 (Shares)	10,321,945
Weighted Average Exercise Price [Roll Forward]
Outstanding at January 1, 2012 (In dollars per share)	$ 10.60
Granted (In dollars per share)	$ 0.17
Exercised (In dollars per share)	$ 5.75
Forfeited or Expired (In dollars per share)	$ 14.66
Outstanding at December 31, 2012 (In dollars per share)	$ 11.13	$ 10.60
Weighted Average Exercise Price, Exercisable at December 31, 2012 (In dollars per share)	$ 10.83
Additional Disclosures [Abstract]
Weighted average remaining contractual term at January 1, 2012	5 years 4 months 24 days	6 years 3 months 18 days
Weighted average remaining contractual term at December 31, 2012	5 years 4 months 24 days	6 years 3 months 18 days
Weighted Average Remaining Contractual Term, Exercisable at Decebmer 31, 2012	4 years 8 months 12 days
Aggregate Intrinsic Value. Outstanding at January 1, 2012 (In thousands of dollars)	$ 41,110
Aggregate Intrinsic Value. Outstanding at December 31, 2012 (In thousands of dollars)	74,681	41,110
Aggregate Intrinsic Value, Exercisable at December 31, 2012 (In thousands of dollars)	$ 63,086