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Derivative Instruments and Hedging Activities - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended |  |  | 3 Months Ended | 6 Months Ended | 1 Months Ended
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Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 Accrued Liabilities [Member] | Dec. 31, 2013 Accrued Liabilities [Member] | Jun. 30, 2014 Cash Flow Hedging [Member] Interest Expense [Member] Interest Rate Swap [Member] | Jun. 30, 2013 Cash Flow Hedging [Member] Interest Expense [Member] Interest Rate Swap [Member] | Jun. 30, 2014 Cash Flow Hedging [Member] Interest Expense [Member] Interest Rate Swap [Member] | Jun. 30, 2013 Cash Flow Hedging [Member] Interest Expense [Member] Interest Rate Swap [Member] | Jun. 30, 2014 Old Credit Facilities [Member] | Jun. 30, 2014 Old Credit Facilities [Member] Term Loans Rate | Jul. 17, 2014 New policy [Member] Term Loans
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Rate Derivative Liabilities, at Fair Value |  |  |  |  | $ 0 | $ 927 |  |  |  |  |  |  |
Derivative, Fixed Interest Rate |  |  |  |  |  |  |  |  |  |  |  | 1.11% |
Derivative, Maturity Years |  |  |  |  |  |  |  |  |  |  |  | 3 years | 3 years
Derivative, Maturity Date |  |  |  |  |  |  |  |  |  |  | Jul. 01, 2014 |  |
Derivative, Basis Spread on Variable Rate |  |  |  |  |  |  |  |  |  |  |  | 1.95% |
Debt Instrument, Interest Rate at Period End |  |  |  |  |  |  |  |  |  |  |  | 3.06% |
Derivative Instruments, Loss Recognized in Other Comprehensive Income (Loss), Effective Portion | (3) | 27 | 23 | 34 |  |  |  |  |  |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net |  |  |  |  |  |  | $ 480 | $ 457 | $ 950 | $ 906 |  |  |

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- Definition Years until the derivative contract matures. + References No definition available. + Details
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- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The percentage points added to the reference rate to compute the variable rate on the interest rate derivative. + References No definition available. + Details
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- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624177-113959 + Details
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- Definition The effective portion of losses on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Details
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- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611 + Details
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