Stockholders' Equity and Share-Based Compensation Stock Repurchases (Details) (USD $)	12 Months Ended			38 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Cummulative Stock Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized amount for stock repurchase plan	$ 15,000,000
Repurchase of common stock (shares)				4,255,153
Repurchases of common stock	15,047,000	11,290,000	7,000,000	36,300,000
Shares repurchased	1,651,000	1,373,000	877,000
Average purchase price	$ 9.12	$ 8.22	$ 7.98
Aggregate purchase price	15,047,000	11,290,000	7,000,000
Shares retired of treasury stock	1,650,525
Amount retired of treasury stock	$ 15,000,000