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Share-Based Compensation (Summary of Nonvested Share Activity) (Details) - $ / shares shares in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Number of Non-vested Shares
December 31, 2014 (in shares)	1,465
Granted (in shares)	561
Vested (in shares)	(488)
Forfeited (in shares)	(44)
June 30, 2015 (in shares)	1,494
Weighted Average Grant Date Fair Value
December 31, 2014 (in dollars per share)	$ 6.17
Granted (in dollars per share)	6.64	$ 8.24
Vested (in dollars per share)	5.17
Forfeited (in dollars per share)	6.59
June 30, 2015 (in dollars per share)	$ 6.66

X

- Definition

Gross number of share options (or share units) granted during the period.

+ References

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (d)(1)



-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of non-vested options outstanding.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Number of non-vested options forfeited.

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- Definition

Weighted average grant-date fair value of non-vested options forfeited.

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Number of options vested.

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Weighted average grant-date fair value of options vested.

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