Earnings per Share (Schedule of Computation of Basic and Diluted Earnings per Share) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Earnings Per Share [Abstract]
(Loss) income from continuing operations	$ (95,708)	$ 9,571	$ 6,431	$ (2,086)	$ 4,009	$ (13,727)	$ 7,732	$ (3,643)	$ (81,792)	$ (5,629)	$ 12,650
Loss from discontinued operations	(1)	(31)	0	0	0	0	0	(4)	(32)	(4)	(5)
Net (loss) income	$ (95,709)us-gaap_NetIncomeLoss	$ 9,540us-gaap_NetIncomeLoss	$ 6,431us-gaap_NetIncomeLoss	$ (2,086)us-gaap_NetIncomeLoss	$ 4,009us-gaap_NetIncomeLoss	$ (13,727)us-gaap_NetIncomeLoss	$ 7,732us-gaap_NetIncomeLoss	$ (3,647)us-gaap_NetIncomeLoss	$ (81,824)us-gaap_NetIncomeLoss	$ (5,633)us-gaap_NetIncomeLoss	$ 12,645us-gaap_NetIncomeLoss
Weighted average shares outstanding (in shares)									31,066	30,930	30,752
Common stock options and restricted stock (in shares)									0	0	105
Weighted average shares and conversions (in shares)									31,066	30,930	30,857

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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