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Consolidated debt as percentage of capitalization.

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Credit agreement amendment date.

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Debt service coverage ratio.

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Interest coverage ratio.

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Line of credit facility additional borrowing capacity.

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Maximum cash balance allowed after borrowing unless proceeds used for acquisition, capital expenditures and repurchase of indebtedness.

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Maximum percentage allowed to invest in foreign subsidiaries or joint ventures on consolidated book value basis.

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Number of covenants.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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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.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

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Description of the conditions for borrowing under the credit facility including the nature of any restrictions.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Description of the frequency of the required periodic payments of interest, principal, or both, and the amount, if set, or a description of a formula upon which payment is based.

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Amount of increase (decrease), classified as other, of the credit facility.

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Date the credit facility first became available, in CCYY-MM-DD format.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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Long Term Debt - Credit Facilities - Additional Information (Detail)					12 Months Ended
	Jan. 24, 2017 USD ($)	Jul. 08, 2016 USD ($)	Mar. 16, 2015	Sep. 27, 2012 USD ($)	Dec. 31, 2016 USD ($) Covenant	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Apr. 01, 2017	Jan. 01, 2017	Mar. 18, 2015 USD ($)
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 600,000,000
Aggregate amount by which the revolving credit facility can be increased		100,000,000
Debt maturity date					Sep. 27, 2017
Proceeds from long-term debt						$ 200,000,000
Total assets					$ 3,804,606,000	4,529,484,000	$ 5,390,912,000
Line of credit, exercised					200,500,000	$ 54,000,000	$ 349,500,000
Letters of credit outstanding					38,200,000
Maximum \| Subsidiaries
Debt Instrument [Line Items]
Total assets					1,000,000
Letter of Credit
Debt Instrument [Line Items]
Line of credit, amount outstanding					$ 0
Credit Agreement
Debt Instrument [Line Items]
Credit agreement date					Sep. 27, 2012
Commitment fee payable to the lenders for the unused portion of the credit facility					0.50%
Credit agreement, financial covenant description					The Company must not permit its debt to capitalization ratio to exceed 40%. The Credit Agreement generally defines the debt to capitalization ratio as the ratio of (a) total borrowed money indebtedness to (b) the sum of such indebtedness plus consolidated net worth, with consolidated net worth determined as of the last day of the most recently ended fiscal quarter. The Company also must not permit its interest coverage ratio as of the last day of a fiscal quarter to be less than 3.00 to 1.00. The Credit Agreement generally defines the interest coverage ratio as the ratio of earnings before interest, taxes, depreciation and amortization (“EBITDA”) of the four prior fiscal quarters to interest charges for the same period. The Company was in compliance with these covenants at December 31, 2016.
Credit agreement, financial covenant compliance					The Company was in compliance with these covenants
Number of compliance covenants \| Covenant					2
Credit Agreement \| Minimum
Debt Instrument [Line Items]
Interest coverage ratio that the Company must exceed on the last day of the fiscal quarter					300.00%
Credit Agreement \| Maximum
Debt Instrument [Line Items]
Debt to capitalization ratio, percentage the Company must not exceed at any time					40.00%
Credit Agreement \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					2.75%
Credit Agreement \| London Interbank Offered Rate (LIBOR) \| Scenario Forecast
Debt Instrument [Line Items]
Applicable margin								2.75%
Credit Agreement \| London Interbank Offered Rate (LIBOR) \| Subsequent Event
Debt Instrument [Line Items]
Applicable margin									2.75%
Credit Agreement \| London Interbank Offered Rate (LIBOR) \| Minimum \| Until September 27, 2017
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					2.75%
Credit Agreement \| London Interbank Offered Rate (LIBOR) \| Minimum \| Beginning September 27, 2017
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					3.25%
Credit Agreement \| London Interbank Offered Rate (LIBOR) \| Maximum \| Until September 27, 2017
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					3.25%
Credit Agreement \| London Interbank Offered Rate (LIBOR) \| Maximum \| Beginning September 27, 2017
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					3.75%
Credit Agreement \| Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					1.75%
Credit Agreement \| Base Rate \| Scenario Forecast
Debt Instrument [Line Items]
Applicable margin								1.75%
Credit Agreement \| Base Rate \| Subsequent Event
Debt Instrument [Line Items]
Applicable margin									1.75%
Credit Agreement \| Base Rate \| Minimum \| Until September 27, 2017
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					1.75%
Credit Agreement \| Base Rate \| Minimum \| Beginning September 27, 2017
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					2.25%
Credit Agreement \| Base Rate \| Maximum \| Until September 27, 2017
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					2.25%
Credit Agreement \| Base Rate \| Maximum \| Beginning September 27, 2017
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					2.75%
Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity				$ 500,000,000
Credit Agreement \| Revolving Credit Facility \| Letter of Credit
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		50,000,000
Credit Agreement \| Revolving Credit Facility \| Swing Line Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		20,000,000
Credit Agreement \| Term Loan Facility
Debt Instrument [Line Items]
Proceeds from long-term debt				$ 100,000,000
Line of credit facility, frequency of payments					Quarterly
Amended Credit Agreement
Debt Instrument [Line Items]
Credit agreement amendment date					Jul. 08, 2016
Debt maturity date					Mar. 27, 2019
Line of credit, amount outstanding		$ 357,900,000			$ 0
Maximum percentage allowed to invest in foreign subsidiaries or joint ventures on consolidated book value basis		20.00%
Maximum cash balance allowed		$ 100,000,000
Amended Credit Agreement \| Minimum
Debt Instrument [Line Items]
Debt service coverage ratio		150.00%
Amended Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit, available borrowing capacity					500,000,000
Amended Credit Agreement \| Revolving Credit Facility \| Subsequent Event
Debt Instrument [Line Items]
Line of credit, exercised	$ 95,800,000
Amount of increase in available credit facility	100,000,000
Aggregate commitments under the revolving credit facility	$ 595,800,000
Reimbursement Agreement
Debt Instrument [Line Items]
Letters of credit outstanding					$ 38,200,000
Reimbursement Agreement \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.25%
2015 Term Loan Agreement
Debt Instrument [Line Items]
Line of credit, amount outstanding										$ 200,000,000
Line of credit facility, frequency of payments					Quarterly
Line of credit facility, frequency of payment and payment terms					The Term Loan Borrowing was payable in quarterly principal installments, together with accrued interest. Loans under the 2015 Term Loan Agreement bore interest, at the Company’s election, at the per annum rate of LIBOR rate plus 3.25% or base rate plus 2.25%.
2015 Term Loan Agreement \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					3.25%
2015 Term Loan Agreement \| Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					2.25%