Employee And Non-Employee Benefit And Compensation Plans - Additional Information (Details) (USD $)	12 Months Ended					3 Months Ended	12 Months Ended																			12 Months Ended							12 Months Ended				3 Months Ended	12 Months Ended					12 Months Ended							3 Months Ended	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011	Mar. 31, 2012 Stock Options [Member]	Dec. 31, 2013 Stock Options [Member]	Dec. 31, 2012 Stock Options [Member]	Dec. 31, 2013 Service period-based options	Dec. 31, 2012 Service period-based options	Dec. 31, 2011 Service period-based options	Dec. 31, 2013 Performance-based RSUs		Dec. 31, 2012 Performance-based RSUs		Dec. 31, 2011 Performance-based RSUs		Dec. 31, 2010 Performance-based RSUs		Dec. 31, 2013 Price-based RSUs	Dec. 31, 2011 Price-based RSUs	Dec. 31, 2012 Price-based RSUs	Dec. 31, 2010 Price-based RSUs	Apr. 30, 2008 1999 Plan	Apr. 30, 2008 Non-Employee Director Plan	Dec. 31, 2011 Prior Plans	Dec. 31, 2012 Prior Plans Service period-based restricted stock	Dec. 31, 2013 Stock Plan	Dec. 31, 2012 Stock Plan	Dec. 31, 2011 Stock Plan	Dec. 31, 2008 Stock Plan	May 01, 2008 Stock Plan	Dec. 31, 2013 Stock Plan Service period-based options	Dec. 31, 2012 Stock Plan Service period-based options	Dec. 31, 2011 Stock Plan Service period-based options	Dec. 31, 2010 Stock Plan Service period-based options	Dec. 31, 2013 Stock Plan Service period-based options Chief Executive Officer [Member]	Dec. 31, 2013 Stock Plan Service period-based options Chief Executive Officer [Member]	Dec. 31, 2013 Stock Plan Service period-based options Chief Executive Officer [Member] Option Tranche One [Member]	Dec. 31, 2013 Stock Plan Service period-based options Chief Executive Officer [Member] Option Tranche Two [Member]	Dec. 31, 2013 Stock Plan Service period-based options Chief Executive Officer [Member] Option Tranche Three [Member]	Dec. 31, 2013 Stock Plan Service period-based options Chief Executive Officer [Member] Option Tranche Four [Member]	Dec. 31, 2011 Stock Plan Price-based options	Dec. 31, 2013 Stock Plan Service period-based restricted stock	Dec. 31, 2011 Stock Plan Service period-based restricted stock	Dec. 31, 2013 Stock Plan Service period-based RSUs	Dec. 31, 2012 Stock Plan Service period-based RSUs	Dec. 31, 2011 Stock Plan Service period-based RSUs	Dec. 31, 2010 Stock Plan Service period-based RSUs	Dec. 31, 2013 Stock Plan Service period-based RSUs Chief Executive Officer [Member]	Dec. 31, 2013 Stock Plan Service period-based RSUs Chief Executive Officer [Member]	Dec. 31, 2013 Stock Plan Price-based RSUs	Dec. 31, 2013 Stock Plan Price-based RSUs Chief Executive Officer [Member]	Dec. 31, 2013 Stock Plan Price-based RSUs $6 exercise price Chief Executive Officer [Member]	Dec. 31, 2013 Stock Plan Price-based RSUs $8 exercise price Chief Executive Officer [Member]	Dec. 31, 2013 Stock Plan Price-based RSUs $10 exercise price Chief Executive Officer [Member]	Dec. 31, 2013 Stock Plan Price-based RSUs $12 exercise price Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum employee contribution	25.00%
Employer mathcing contribution percent of match	50.00%
Employer matching contribution, percent	6.00%
Employer-matching contributions vesting period	4 years
Employer-matching contributions	$ 700,000		$ 800,000		$ 600,000
Number of shares authorized for grant awards																								10,000,000	600,000
Shares available for issuance																												6,517,550,000				10,000,000
Increase in shares available for issuance																															4,557,000
Non-cash equity compensation	1,908,000	[1]	3,807,000	[1]	5,496,000																																	100,000													100,000			100,000
Non-cash equity compensation	1,979,000		3,939,000		5,020,000
Maximum term of stock options	10 years
Vesting period									1 year
Option Expense	800,000		1,700,000		2,900,000
Unrecognized compensation cost related to stock awards							1,000,000																														700,000	700,000								1,400,000				900,000	900,000	500,000		400,000
Weighted average recognition period of unrecognized compensation cost							2 years 10 months 13 days																															3 years								2 years 9 months 18 days					3 years	1 year 9 months 18 days
Intrinsic value of options exercised						2,100,000		100,000
Total fair value of shares vested																										900,000		1,400,000	900,000	2,500,000
Restricted Stock or Unit Expense	1,100,000		2,300,000		2,100,000
Total fair value of shares vested												$ 600,000		$ 200,000		$ 800,000											$ 400,000																	$ 100,000	$ 900,000	$ 1,400,000	$ 400,000
Options granted																																	1,190,000	505,000	1,740,559		1,000,000,000						825,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, One Fourth Tranche																																					250,000,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Stated Exercise Price																																							$ 2,750	$ 3,000	$ 4,000	$ 5,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, One Third Tranche																																					333,333,000
Exercise price of option granted									$ 1.15	$ 1.79	$ 1.67																						$ 0.90	$ 1.72	$ 1.80								$ 1.63											$ 6	$ 8	$ 10	$ 12
Nonvested shares												0		140,500		208,500		720,000		970,000	440,000	440,000	0										0	0	8,352	320,922										742,083	719,726	539,698	0
Nonvested shares, weighted average grant date fair value												$ 0.00	[2]	$ 4.62	[2]	$ 4.62	[2]	$ 4.62	[2]	$ 0.77	$ 3.07	$ 3.07	$ 0.00										$ 0.00	$ 0.00	$ 4.49	$ 8.24										$ 2.69	$ 3.93	$ 4.29	$ 0.00
Shares granted																550,000		351,625		930,000	440,000												26,966,000	25,202	33,037											814,500	302,163	639,698		400,000			800,000			200,000	200,000
Shares forfeited					87,500							5,000		17,500		341,500				400,000															217,510											353,790	2,500
Number of RSUs to vest																																																		133,333				200,000

[1] As disclosed on the Company's consolidated statements of cash flows, total non-cash equity compensation expense was $2.0 million, $3.9 million and $5.0 million in 2013, 2012 and 2011, respectively. Included in non-cash equity compensation expense were net charges to expense of approximately $0.1 million for 2013 and 2012, and reversals of expense in 2011 of approximately $0.5 million, which were generated in connection with restructuring activities. Accordingly, these amounts are reflected as restructuring charges in the Company's 2013 and 2012 consolidated statements of operations. See Note 16, Restructuring Charges for further information.

[2] The weighted average grant date value included in the table above was adjusted to reflect the impact of the modifications approved on December 3, 2010 to the 2010 and 2009 awards.