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Other Noncurrent - Schedule of Other Noncurrent (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Other Assets Noncurrent Disclosure [Abstract] |  |
Assets held for sale | $ 590 us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets | $ 532 us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets
Other | 9 us-gaap_OtherAssetsMiscellaneousNoncurrent | 41 us-gaap_OtherAssetsMiscellaneousNoncurrent
Total other noncurrent assets | $ 599 us-gaap_OtherAssetsNoncurrent | $ 573 us-gaap_OtherAssetsNoncurrent

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- Definition Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). + 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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
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Balance Type: | debit
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- Details
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Balance Type: | na
Period Type: | duration