Stockholders' Equity (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended		9 Months Ended
	Nov. 01, 2013	Mar. 22, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
Class of Stock [Line Items]
Stock issued upon exercise of warrants (in shares)			2,400,000	4,300,000
Stock repurchased amount		$ 5,000,000
Payment to purchased the full shares authorized	40,000,000			43,170,000	238,000	5,000,000
Transaction costs related to Dutch auction tender offer	$ 300,000
Pre-Arranged Stock Repurchase Plan
Class of Stock [Line Items]
Repurchase of Company stock (in shares)				1,163,000
Tender Offer
Class of Stock [Line Items]
Repurchase of Company stock (in shares)	16,300,000
Common stock
Class of Stock [Line Items]
Issuance of shares related to restricted stock (in shares)			125,000	125,000
Shares canceled or surrendered as payment of tax withholding (in shares)			48,000	102,000
Repurchase of Company stock (in shares)				17,490,000