Earnings Per Share (Weighted-Average Shares of Common Stock Outstanding Used in Calculation of Basic and Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Net (loss) income	$ (79,030)us-gaap_NetIncomeLoss	$ 1,407us-gaap_NetIncomeLoss
Basic weighted-average shares outstanding	129,235	128,560
Dilutive impact of stock options and restricted shares		1,262
Dilutive impact of common stock warrants		8,534
Diluted weighted-average shares outstanding	129,235	138,356
Earnings (loss) per share attributable to continuing operations:
Basic	$ (0.61)	$ 0.01
Diluted	$ (0.61)	$ 0.01

Earnings Per Share (Weighted-Average Shares of Common Stock Outstanding Used in Calculation of Basic and Diluted Earnings Per Share) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Earnings Per Share [Abstract]

Net (loss) income

$ (79,030)us-gaap_NetIncomeLoss

$ 1,407us-gaap_NetIncomeLoss

Basic weighted-average shares outstanding

129,235us-gaap_WeightedAverageNumberOfSharesOutstandingBasic

128,560us-gaap_WeightedAverageNumberOfSharesOutstandingBasic

Dilutive impact of stock options and restricted shares

1,262us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

Dilutive impact of common stock warrants

8,534us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants

Diluted weighted-average shares outstanding

129,235us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

138,356us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

Earnings (loss) per share attributable to continuing operations:

Basic

$ (0.61)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare

$ 0.01us-gaap_IncomeLossFromContinuingOperationsPerBasicShare

Diluted

$ (0.61)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare

$ 0.01us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare

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

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method.

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