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Long-term Debt - Remaining Quarterly Amortization of Term Facilities (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2012
March 31, 2013 - September 30, 2013 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2013-03-31 - 2013-09-30
December 31, 2013 - March 31, 2014 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2013-12-31 - 2014-03-31
June 30, 2014 - December 31, 2014 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2014-06-30 - 2014-12-31
March 31, 2015 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2015-03-31
June 30, 2015 - September 30, 2015 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2015-06-30 - 2015-09-30
December 31, 2015 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2015-12-31
March 31, 2016 - September 30, 2016 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2016-03-31 - 2016-09-30
December 31, 2016 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2016-12-31
March 31, 2017 - June 30, 2017 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2017-03-31 - 2017-06-30
August 9, 2017 [Member] |
Debt Instrument [Line Items] |
Principal payment date | 2017-08-09

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- Definition Description of the frequency of periodic payments (monthly, quarterly, annual). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration