Significant Accounting Policies (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2012
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, net, beginning balance	$ 45,203us-gaap_FiniteLivedIntangibleAssetsNet
Accumulated amortization - other intangibles	(6,160)	(6,160)	(6,157)
Amortization expense	(3)us-gaap_AmortizationOfIntangibleAssets
Intangible assets, net, ending balance	45,200us-gaap_FiniteLivedIntangibleAssetsNet	34,700us-gaap_FiniteLivedIntangibleAssetsNet
Trademarks
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)		10,500
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, gross	45,200	34,700	45,200
Other intangibles
Finite-lived Intangible Assets [Roll Forward]
Intangible assets, gross	$ 6,160	$ 6,160	$ 6,160

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

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+ References

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

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-Topic 350

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-Subparagraph (a)(1)

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

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