Other Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Liabilities Disclosure [Abstract]
Unrecognized Tax Benefits	$ 3,107us-gaap_UnrecognizedTaxBenefits	$ 3,020us-gaap_UnrecognizedTaxBenefits	$ 12,742us-gaap_UnrecognizedTaxBenefits
Off-market Lease, Unfavorable	271us-gaap_OffMarketLeaseUnfavorable	294us-gaap_OffMarketLeaseUnfavorable
Unrecognized tax benefit netted against a deferred tax asset for a net operating loss carryforward	(929)	(1,135)
Other liabilities	$ 2,449us-gaap_OtherLiabilitiesNoncurrent	$ 2,179us-gaap_OtherLiabilitiesNoncurrent

Unrecognized tax benefit netted against a deferred tax asset for a net operating loss carryforward

No definition available.

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- Definition

This element represents a liability associated with the acquisition of an off-market lease when the terms of the lease are unfavorable to the market terms for the lease at the date of acquisition.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Details

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- Definition

Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).

+ References

+ Details

Name:	us-gaap_OtherLiabilitiesNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

+ Details

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Period Type:	instant