Share-Based Payments (Rights to Receive Cash) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining total expected expense	$ 30,338
ecoATM
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remainder of 2015	2,690
2016	2,905
2017	511
Remaining total expected expense	$ 6,106

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Next Twelve Months

No definition available.

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- Definition

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Remainder of fiscal year

+ References

No definition available.

+ Details

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- Definition

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost To Be Recognized, Year Two

+ References

No definition available.

+ Details

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ 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 (i)

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

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