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Earnings Per Share (Computation Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Numerator (both basic and diluted):
Net loss	$ (32,624)us-gaap_NetIncomeLoss	$ (1,907)us-gaap_NetIncomeLoss
Denominator:
Denominator for basic loss per share	40,072,451	40,605,180
Denominator for diluted loss per share	40,072,451	40,605,180
Basic loss per common share:	$ (0.81)us-gaap_EarningsPerShareBasic	$ (0.05)us-gaap_EarningsPerShareBasic
Diluted loss per common share:	$ (0.81)us-gaap_EarningsPerShareDiluted	$ (0.05)us-gaap_EarningsPerShareDiluted

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

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

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