Goodwill and Other Intangible Assets (Expected Future Amortization) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Remainder of 2015	$ 9,896
2016	13,093
2017	13,093
2018	9,643
2019	4,813
2020	4,777
Thereafter	6,023
Intangible assets, net	61,338us-gaap_FiniteLivedIntangibleAssetsNet	64,691us-gaap_FiniteLivedIntangibleAssetsNet
Retailer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Remainder of 2015	3,009
2016	4,012
2017	4,012
2018	4,012
2019	4,012
2020	4,012
Thereafter	6,023
Intangible assets, net	29,092	30,095
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Remainder of 2015	5,100
2016	6,800
2017	6,800
2018	3,967
2019	0
2020	0
Thereafter	0
Intangible assets, net	22,667	24,367
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Remainder of 2015	1,787
2016	2,281
2017	2,281
2018	1,664
2019	801
2020	765
Thereafter	0
Intangible assets, net	$ 9,579	$ 10,229

Finite-Lived Intangible Assets, Amortization Expense, after Year Six

No definition available.

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- Definition

Finite-Lived Intangible Assets, Amortization Expense, Year Six

+ References

No definition available.

+ Details

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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