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Long-Term Debt - Additional Information (Detail) - USD ($) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 14, 2015 | Jun. 26, 2015 | Jun. 17, 2015 | Mar. 25, 2015 | Mar. 13, 2015 | Feb. 21, 2014 | Apr. 30, 2013 | Oct. 03, 2015 | Sep. 27, 2014 | Jun. 29, 2013 | Oct. 03, 2015 | Sep. 27, 2014 | Jan. 03, 2015 | Jun. 22, 2015 | Mar. 20, 2015 | Sep. 26, 2014 | Apr. 02, 2013
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fees incurred in connection with debt refinancing |  |  |  |  |  |  |  |  |  | $ 44,817,000 |  |  |  |  |  |  |
Payments of term loan |  |  |  |  |  |  | $ 2,399,904,000 |  |  |  | $ 104,863,000 | $ 18,000,000 |  |  |  |  |
Write-off of deferred financing fees |  |  |  |  |  |  |  |  |  | $ 21,685,000 |  |  |  |  |  |  |
Gain on early debt extinguishment |  |  |  |  |  |  |  | $ (50,000) | $ 0 |  | 11,426,000 | $ 0 |  |  |  |  |
Credit facility drew down amount | $ 48,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit Facility, aggregate principal amount outstanding |  |  |  |  |  |  |  | $ 2,239,823,000 |  |  | $ 2,239,823,000 |  | $ 2,358,000,000 |  |  |  |
Additional applicable margin in the event the Company receives a corporate rating of BB- from S&P (or lower) and a corporate rating of Ba3 from Moody's (or lower) |  |  |  |  |  |  |  | 0.25% |  |  | 0.25% |  |  |  |  |  |
Average interest rate on debt |  |  |  |  |  |  |  | 3.92% |  |  | 3.92% |  | 3.90% |  |  |  |
Average interest rate on debt |  |  |  |  |  |  |  |  |  |  | 5.01% |  | 4.93% |  |  |  |
Tranche B-1 Term Facility due April 2, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WWI Credit Facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000
Fees incurred in connection with debt refinancing |  | $ 641,000 |  | $ 601,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Write-off of deferred financing fees |  | 321,000 |  | 326,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment of accepted offers |  | 77,225,000 |  | 57,389,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued and unpaid interest on the amount to be prepaid |  | 84,862,000 |  | 63,065,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Reduction in obligation |  |  |  | 59,728,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, voluntary prepayment |  |  |  | 2,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on early debt extinguishment |  | $ 6,677,000 |  | $ 4,749,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Credit Facility, aggregate principal amount outstanding |  |  |  |  |  |  |  | $ 144,323,000 |  |  | $ 144,323,000 |  | $ 294,750,000 |  |  |  |
Tranche B-1 Term Facility due April 2, 2016 | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WWI Credit Facility, additional interest rate |  |  |  |  |  | 2.75% |  |  |  |  | 3.00% |  |  |  |  |  |
Tranche B-1 Term Facility due April 2, 2016 | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount, discount par value |  |  | $ 229,000,000 |  | $ 75,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Tranche B-1 Term Facility due April 2, 2016 | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, effective percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 9.00% | 9.00% |  |
Tranche B-2 Term Facility due April 2, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WWI Credit Facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,100,000,000
Credit Facility, aggregate principal amount outstanding |  |  |  |  |  |  |  | 2,047,500,000 |  |  | $ 2,047,500,000 |  | 2,063,250,000 |  |  |  |
Tranche B-2 Term Facility due April 2, 2020 | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WWI Credit Facility, minimum interest rate |  |  |  |  |  |  |  |  |  |  | 0.75% |  |  |  |  |  |
WWI Credit Facility, additional interest rate |  |  |  |  |  | 3.00% |  |  |  |  | 3.25% |  |  |  |  |  |
Tranche B-2 Term Facility due April 2, 2020 | Base Rate Plus |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WWI Credit Facility, minimum interest rate |  |  |  |  |  |  |  |  |  |  | 1.75% |  |  |  |  |  |
Term B Loan due January 26, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of term loan |  |  |  |  |  |  | 128,759,000 |  |  |  |  |  |  |  |  |  |
Term C Loan due June 30, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of term loan |  |  |  |  |  |  | 110,602,000 |  |  |  |  |  |  |  |  |  |
Term D Loan due June 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of term loan |  |  |  |  |  |  | 117,612,000 |  |  |  |  |  |  |  |  |  |
Term E Loan due March 15, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of term loan |  |  |  |  |  |  | 1,125,044,000 |  |  |  |  |  |  |  |  |  |
Term F Loan due March 15, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of term loan |  |  |  |  |  |  | 817,887,000 |  |  |  |  |  |  |  |  |  |
Revolver A-1 Loan due June 30, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of term loan |  |  |  |  |  |  | 21,247,000 |  |  |  |  |  |  |  |  |  |
Revolver A-2 Loan due March 15, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of term loan |  |  |  |  |  |  | $ 78,753,000 |  |  |  |  |  |  |  |  |  |
Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt outstanding amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,400,000,000
WWI Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit Facility, aggregate principal amount outstanding |  |  |  |  |  |  |  | 2,191,823,000 |  |  | $ 2,191,823,000 |  |  |  |  |  |
Revolving Facility due April 2, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WWI Credit Facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,000,000 | 250,000,000
Credit facility available amount |  |  |  |  |  |  |  | 181,000 |  |  | 181,000 |  |  |  |  |  | $ 248,848,000
Write-off of deferred financing fees related to amendment |  |  |  |  |  |  |  |  | $ 1,583,000 |  |  |  |  |  |  |  |
Credit Facility, aggregate principal amount outstanding |  |  |  |  |  |  |  | 48,000,000 |  |  | 48,000,000 |  | $ 0 |  |  |  |
Loan outstanding under the revolving facility |  |  |  |  |  |  |  | 48,000,000 |  |  | 48,000,000 |  |  |  |  |  |
Line of credit facility, issued but undrawn letters of credit |  |  |  |  |  |  |  | $ 1,819,000 |  |  | $ 1,819,000 |  |  |  |  |  |
Revolving credit facility, commitment fee on unused commitments |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |
Revolving Facility due April 2, 2018 | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
WWI Credit Facility, additional interest rate |  |  |  |  |  |  |  |  |  |  | 2.50% |  |  |  |  |  |

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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond 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 210.5-02.22) -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 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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