Weighted Average Shares Outstanding (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Weighted average common stock outstanding	38,876	38,707	38,814		38,679
Less: weighted average unvested restricted stock outstanding	0	189	41		261
Weighted Average Number of Shares Outstanding, Basic	38,876	38,518	38,773		38,418
Effect of dilutive securities:
Stock options and restricted units excluded from calculation	883	623	0	[1]	595
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted average common stock outstanding, basic	38,876	38,518	38,773		38,418
Effect of dilutive securities:
Stock options and restricted units excluded from calculation	883	623	0	[1]	595
Total weighted average shares outstanding assuming dilution	39,759	39,141	38,773		39,013
Antidilutive Securities Excluded from Computation of Earnings Per Share			863

[1] 1Due to the net loss for the nine months ended September 30, 2013, restricted stock units and common stock options representing approximately 863,000 have been excluded from the number of shares used in calculating diluted net loss per share, as their inclusion would be antidilutive.