Stockholder's Equity (Tables)

9 Months Ended

Sep. 30, 2011

Stockholders' Equity and Comprehensive Income [Abstract]

Summary of activity related to restricted stock units

	Unvested
	Shares
Outstanding at December 31, 2010		1,514,459
Granted		499,310
Forfeited		(35,385	)
Vested and Issued		(538,878	)
Vested and Unissued		(31,606	)
Outstanding at September 30, 2011		1,407,900