Weighted Average Shares Outstanding (Details)	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Weighted average common stock outstanding	38,654,000		38,798,000		38,683,000		38,734,000
Less: weighted average unvested restricted stock outstanding	514,000		948,000		631,000		964,000
Weighted Average Number of Shares Outstanding, Basic	38,140,000		37,850,000		38,052,000		37,770,000
Effect of dilutive securities:
Stock options and restricted units excluded from calculation	339,000	[1]	0	[1]	0	[1]	0	[1]
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted average common stock outstanding, basic	38,140,000		37,850,000		38,052,000		37,770,000
Effect of dilutive securities:
Stock options and restricted units excluded from calculation	339,000	[1]	0	[1]	0	[1]	0	[1]
Total weighted average shares outstanding assuming dilution	38,479,000		37,850,000		38,052,000		37,770,000
Antidilutive Securities Excluded from Computation of Earnings Per Share			119,000		291,000		115,000

[1] Due to net losses, stock options and restricted stock units representing 291,000, 119,000 and 115,000 have been excluded from the number of shares used in calculating diluted loss per share, as their inclusion would be antidilutive for the six months ended June 30, 2011 and the three and six months ended June 30, 2010, respectively.