Consolidated leverage ratio.

No definition available.

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- Definition

Debt instrument, maximum outstanding amount.

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No definition available.

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Debt instrument principal amount issuance percentage.

+ References

No definition available.

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- Definition

Debt instrument yield percentage.

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No definition available.

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- Definition

Interest rate margin adjustment percentage.

+ References

No definition available.

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- Definition

Line of credit facility maturity month and year.

+ References

No definition available.

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- Definition

Rate adjustment to federal funds rate weighted average.

+ References

No definition available.

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Period Type:	instant

- Definition

Rate adjustment to one month Eurodollar rate on credit facility borrowings.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Securitized borrowings credit facility borrowing capacity.

+ References

No definition available.

+ Details

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- Definition

Securitized borrowings credit facility remaining borrowing capacity.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ 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

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-Publisher FASB
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-Section S99
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-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments applied to principal.

+ References

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of increase (decrease) of the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

+ Details

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Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

+ Details

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Period Type:	instant

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
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-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This is the principal amount outstanding for securitized loans only (across all types of loans).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82924980&loc=d3e107314-111719

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

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Balance Type:	credit
Period Type:	duration

- Details

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Long-Term Debt - Additional Information (Detail) - USD ($)		1 Months Ended	3 Months Ended	12 Months Ended
	Jun. 07, 2016	Jun. 30, 2016	Dec. 31, 2014	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jul. 31, 2017	Jun. 30, 2017	Jun. 03, 2016	Aug. 07, 2014
Debt Instrument [Line Items]
Line of credit facility, starting date	Jun. 07, 2016
Line of credit facility, maturity month	2019-08
Rate adjustment to weighted average federal funds rate for credit facility borrowings				0.50%
Rate adjustment to one month Eurodollar rate on credit facility borrowings				1.00%
Accounts receivable securitization program credit facility, borrowing capacity							$ 440,000,000	$ 400,000,000
Accounts receivable securitization program credit facility, amount outstanding				$ 420,000,000
Accounts receivable securitization program credit facility, available borrowing capacity				20,000,000
Reduction of long-term debt				143,106,000	$ 459,183,000	$ 68,166,000
Debt instrument net carrying amount				$ 4,059,238,000	$ 4,161,699,000
Effective interest rate				2.80%	2.60%	2.40%
Debt instrument net carrying amount				$ 4,040,009,000	$ 4,136,125,000
Fair value of debt				$ 4,100,000,000	4,100,000,000
Accounts Receivable Securitization Facility
Debt Instrument [Line Items]
Line of credit facility, maturity month				2018-12
Accounts receivable securitization program credit facility, amount outstanding				$ 419,500,000	398,700,000
3.75% Senior Secured Notes due 2019
Debt Instrument [Line Items]
Senior notes, interest rate				3.75%
4.75% Senior Secured Notes due 2022
Debt Instrument [Line Items]
Senior notes, interest rate				4.75%
5.00% Senior Secured Notes due 2026
Debt Instrument [Line Items]
Senior notes, interest rate				5.00%
Senior Notes 7.125%
Debt Instrument [Line Items]
Senior notes, interest rate		7.125%
Senior notes, maturity date		Jun. 30, 2016
Reduction of long-term debt		$ 400,000,000
Credit Agreement And Securitization
Debt Instrument [Line Items]
Debt instrument net carrying amount				$ 2,600,000,000	$ 2,300,000,000	$ 2,100,000,000
Effective interest rate				2.50%	2.00%	1.70%
Maximum amounts outstanding at any month-end				$ 2,700,000,000	$ 2,700,000,000	$ 2,300,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity	$ 800,000,000			800,000,000
Line of credit facility amount outstanding				$ 403,000,000
Current applicable margins				1.50%
Line of credit facility, available borrowing capacity				$ 329,000,000
Letters of credit, outstanding				33,000,000
Revolving Credit Facility \| Short Term on Demand Credit Facility
Debt Instrument [Line Items]
Line of credit facility amount outstanding				35,000,000
Revolving Credit Facility \| Letter of Credit
Debt Instrument [Line Items]
Line of credit facility, borrowing capacity				$ 125,000,000
Revolving Credit Facility \| ABR-based loans
Debt Instrument [Line Items]
Current applicable margins				0.50%
Revolving Credit Facility \| Minimum \| One Month Eurodollar Rate Plus Index Based Loans
Debt Instrument [Line Items]
Consolidated Leverage Ratio				0.50%
Revolving Credit Facility \| Minimum \| One Two Three Six Month Eurodollar Rate Plus Index Based Loans
Debt Instrument [Line Items]
Consolidated Leverage Ratio				1.50%
Revolving Credit Facility \| Maximum \| One Month Eurodollar Rate Plus Index Based Loans
Debt Instrument [Line Items]
Consolidated Leverage Ratio				1.25%
Revolving Credit Facility \| Maximum \| One Two Three Six Month Eurodollar Rate Plus Index Based Loans
Debt Instrument [Line Items]
Consolidated Leverage Ratio				2.25%
Term Loan A
Debt Instrument [Line Items]
Line of credit facility amount outstanding				$ 1,774,607,000	$ 1,862,915,000
Line of credit facility increased amount	$ 200,000,000
Current applicable margins				1.50%
Term Loan A \| Quarterly installment payments made from the fourth quarter of 2014 through third quarter of 2016
Debt Instrument [Line Items]
Scheduled principal payments made			$ 11,000,000
Term Loan A \| Quarterly installment payments after September, 2016
Debt Instrument [Line Items]
Scheduled principal payments made				$ 22,000,000
Term Loan A \| ABR-based loans
Debt Instrument [Line Items]
Current applicable margins				0.50%
Term Loan A \| Minimum \| One Month Eurodollar Rate Plus Index Based Loans
Debt Instrument [Line Items]
Consolidated Leverage Ratio				0.50%
Term Loan A \| Minimum \| One Two Three Six Month Eurodollar Rate Plus Index Based Loans
Debt Instrument [Line Items]
Consolidated Leverage Ratio				1.50%
Term Loan A \| Maximum \| One Month Eurodollar Rate Plus Index Based Loans
Debt Instrument [Line Items]
Consolidated Leverage Ratio				1.25%
Term Loan A \| Maximum \| One Two Three Six Month Eurodollar Rate Plus Index Based Loans
Debt Instrument [Line Items]
Consolidated Leverage Ratio				2.25%
New Senior Secured Notes
Debt Instrument [Line Items]
Senior notes, issued				$ 1,400,000,000
New Senior Secured Notes \| 3.75% Senior Secured Notes due 2019
Debt Instrument [Line Items]
Senior notes, issued										$ 300,000,000
Senior notes, interest rate										3.75%
Senior notes, maturity date				Aug. 01, 2019
New Senior Secured Notes \| 4.75% Senior Secured Notes due 2022
Debt Instrument [Line Items]
Senior notes, issued				$ 700,000,000					$ 400,000,000	$ 300,000,000
Senior notes, interest rate				4.75%
Senior notes issued percentage									101.50%
Senior notes yield percentage									4.35%
Senior notes, maturity date				Aug. 01, 2022
New Senior Secured Notes \| 5.00% Senior Secured Notes due 2026
Debt Instrument [Line Items]
Senior notes, issued									$ 400,000,000
Senior notes, interest rate									5.00%
Senior notes, maturity date				Jun. 01, 2026