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

No definition available.

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- 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ 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

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.

+ 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 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Long-Term Debt and Notes Payable - Select Credit Facilities (Details) - Select Excluding Concentra - Credit facilities - USD ($)	Mar. 22, 2018	Mar. 06, 2017
2017 Select Credit Facilities
Debt Instrument [Line Items]
Current borrowing capacity		$ 1,600,000,000
Revolving facility \| 2017 Select Credit Facilities
Debt Instrument [Line Items]
Current borrowing capacity		$ 450,000,000.0
Revolving facility \| 2017 Select Credit Facilities \| Adjusted LIBO \| Minimum
Debt Instrument [Line Items]
Interest rate margin (as a percent)		3.00%
Revolving facility \| 2017 Select Credit Facilities \| Adjusted LIBO \| Maximum
Debt Instrument [Line Items]
Interest rate margin (as a percent)		3.25%
Revolving facility \| 2017 Select Credit Facilities \| Alternate Base Rate \| Minimum
Debt Instrument [Line Items]
Interest rate margin (as a percent)		2.00%
Revolving facility \| 2017 Select Credit Facilities \| Alternate Base Rate \| Maximum
Debt Instrument [Line Items]
Interest rate margin (as a percent)		2.25%
Revolving facility \| 2017 Select Credit Facilities Amendment \| Adjusted LIBO \| Minimum
Debt Instrument [Line Items]
Interest rate margin (as a percent)	2.50%
Revolving facility \| 2017 Select Credit Facilities Amendment \| Adjusted LIBO \| Maximum
Debt Instrument [Line Items]
Interest rate margin (as a percent)	2.75%
Revolving facility \| 2017 Select Credit Facilities Amendment \| Alternate Base Rate \| Minimum
Debt Instrument [Line Items]
Interest rate margin (as a percent)	1.50%
Revolving facility \| 2017 Select Credit Facilities Amendment \| Alternate Base Rate \| Maximum
Debt Instrument [Line Items]
Interest rate margin (as a percent)	1.75%
Term loans \| 2017 Select Credit Facilities
Debt Instrument [Line Items]
Aggregate principal amount		$ 1,150,000,000
Term loans \| 2017 Select Credit Facilities \| Adjusted LIBO Rate floor
Debt Instrument [Line Items]
Interest rate margin (as a percent)		1.00%
Term loans \| 2017 Select Credit Facilities \| Adjusted LIBO
Debt Instrument [Line Items]
Interest rate margin (as a percent)		3.50%
Term loans \| 2017 Select Credit Facilities \| Alternate Base Rate floor
Debt Instrument [Line Items]
Interest rate margin (as a percent)		2.00%
Term loans \| 2017 Select Credit Facilities \| Alternate Base Rate
Debt Instrument [Line Items]
Interest rate margin (as a percent)		2.50%
Term loans \| 2017 Select Credit Facilities Amendment \| Adjusted LIBO \| Minimum
Debt Instrument [Line Items]
Interest rate margin (as a percent)	2.50%
Term loans \| 2017 Select Credit Facilities Amendment \| Adjusted LIBO \| Maximum
Debt Instrument [Line Items]
Interest rate margin (as a percent)	2.75%
Term loans \| 2017 Select Credit Facilities Amendment \| Alternate Base Rate \| Minimum
Debt Instrument [Line Items]
Interest rate margin (as a percent)	1.50%
Term loans \| 2017 Select Credit Facilities Amendment \| Alternate Base Rate \| Maximum
Debt Instrument [Line Items]
Interest rate margin (as a percent)	1.75%
Letter of credit \| 2017 Select Credit Facilities
Debt Instrument [Line Items]
Current borrowing capacity		$ 75,000,000.0