Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Basic EPS Two Class Method:
Income	$ 5,442	$ 8,038	$ (2,442)
Income, share amounts	43,628,000	43,167,000
Earnings Per Share, Basic	$ 0.12	$ 0.19
Dilutive Securities:
Dilutive Options, Shares	0	34,000
Dilutive RSA's, Shares	420,000	280,000
Dilutive RSU's, Shares	70,000	122,000
Diluted EPS:
Net Income (Loss) Available to Common Stockholders, Diluted	$ 5,442	$ 8,038
Weighted Average Number of Shares Outstanding, Diluted	44,118,000	43,603,000
Earnings Per Share, Diluted	$ 0.12	$ 0.18
Stock Options [Member]
Earnings Per Share (Textual)
Antidilutive shares excluded from EPS, shares	1,500,000	1,400,000
Restricted Stock [Member]
Earnings Per Share (Textual)
Antidilutive shares excluded from EPS, shares	400,000	300,000
Restricted Stock Units (RSUs) [Member]
Earnings Per Share (Textual)
Contingently Issuable Shares Not Included in Diluted EPS	700,000	300,000