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v3.3.1.900

Derivative Instruments - Additional Information (Detail) - USD ($) $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 03, 2011 | Dec. 31, 2011 | Sep. 30, 2011 | Jul. 31, 2011 | Dec. 31, 2010 | Apr. 30, 2010 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Sep. 29, 2011 | Jul. 12, 2011 | Apr. 15, 2010
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contract with notional amount |  |  |  |  |  |  |  |  |  | $ 350,000 |  |
Interest rate exchange agreement expiration date |  |  | Feb. 28, 2012 |  |  |  |  |  |  |  |  |
Future amortization interest expense over 10 year periods |  |  |  |  |  |  | $ 1,612 | $ 1,723 | $ 1,703 |  |  |
Additional interest rate contract settlement |  | $ 4,000 |  |  |  |  |  |  |  |  |  |
Expense reclassified into interest expense for interest rate contracts |  |  |  |  |  |  | (7,000) | $ (7,200) | $ (7,400) |  |  |
Amount to be recognized from hedged transactions within 12 months, approximate |  |  |  |  |  |  | $ (6,800) |  |  |  |  |
Interest Rate Exchange Agreement Expiring 2010 |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contract with notional amount |  |  |  |  |  |  |  |  |  |  |  | $ 300,000
Interest rate exchange agreement expiration date |  |  |  |  |  | Dec. 31, 2010 |  |  |  |  |  |
Interest rate contract settlement amount |  |  |  |  | $ 31,000 |  |  |  |  |  |  |
Future amortization interest expense over 10 year periods |  |  |  |  | $ 31,000 |  |  |  |  |  |  |
Term of amortized interest expense, years |  |  |  |  | 10 years |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  | 5.80% |  |  |
Interest Rate Exchange Agreement Expiring 2011 |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate contract with notional amount |  |  |  |  |  |  |  |  |  |  | $ 350,000 |
Interest rate exchange agreement expiration date |  |  |  | Sep. 30, 2011 |  |  |  |  |  |  |  |
Interest rate contract settlement amount | $ 34,700 |  |  |  |  |  |  |  |  |  |  |
Interest Rate Exchange Agreements Expiring 2011 And 2012 |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Future amortization interest expense over 10 year periods |  | 37,900 |  |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  | 5.30% |  |  |  |
Settlement amount interest rate contract |  |  |  |  |  |  |  | $ 38,700 |  |  |  |
Interest rate settlement recognized as other expense |  | $ 800 |  |  |  |  |  |  |  |  |  |
4.5% Senior Notes, due December 2020 |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest rate on senior notes |  |  |  |  |  |  |  |  |  |  |  | 4.50%

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- Definition Interest Rate Contract Settlement Amount + References No definition available. + Details
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- Definition Interest Rate Contract Settlement Date + References No definition available. + Details
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- Definition Settlement amount interest rate contract + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 8 -Article 9 + Details
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