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Long Term Debt Contingent Payment Of Principal Or Interest Principal Including Unpaid Interest

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

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- Definition

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5

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-Subparagraph (SX 210.5-02.22(a)(2))

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.24)

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Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 21, 2001
Commitments and Contingencies [Line Items]
Accrued liabilities related to retained risks	$ 147,900,000us-gaap_SelfInsuranceReserve	$ 146,400,000us-gaap_SelfInsuranceReserve
Rent expenses	118,900,000us-gaap_LeaseAndRentalExpense	124,700,000us-gaap_LeaseAndRentalExpense	126,200,000us-gaap_LeaseAndRentalExpense
Minimum
Commitments and Contingencies [Line Items]
Lease term, (years)	1 year
Maximum
Commitments and Contingencies [Line Items]
Lease term, (years)	20 years
Contingent Promissory Note
Commitments and Contingencies [Line Items]
Principal amount of contingent promissory note	40,000,000
Promissory note term	20 years
Contingent promissory note, maximum amount including interest	$ 96,000,000
Promissory note, maturity date	Dec. 21, 2021
DFA
Commitments and Contingencies [Line Items]
Acquired interest percentage				33.80%