Debt Covenant, Consolidated Ratio

No definition available.

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- Definition

Line Of Credit Facility, Covenant Terms, Leverage Ratio

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Amount Outstanding, Current

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Weighted Average Interest Rate

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- 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

Reference 2: 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(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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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- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

+ Details

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

- Definition

Amount, before accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section S45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68176171&loc=SL68176184-208336

+ Details

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Balance Type:	debit
Period Type:	instant

- 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 fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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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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Balance Type:	credit
Period Type:	instant

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Long Term Debt - Credit Facility (Details) $ in Millions	3 Months Ended
Long Term Debt - Credit Facility (Details) $ in Millions	Mar. 31, 2018 USD ($) Rate	Mar. 31, 2017 Rate
Debt Instrument [Line Items]
Amount outstanding	$ 135.0
Letters of credit outstanding	$ 4.5
Commitment fee percentage	15.00%
London Interbank Offered Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Variable rate	1.00%
London Interbank Offered Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Variable rate	1.25%
Prime Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Variable rate	0.00%
Prime Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Variable rate	0.25%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,250.0
Unused borrowing capacity	300.0
Debt financing costs	3.9
Term Loan Facility [Member]
Debt Instrument [Line Items]
Long-term debt	$ 155.0
Weighted average interest rate \| Rate	2.80%	1.90%
Letter of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 50.0
EBITDA [Member]
Debt Instrument [Line Items]
Consolidated ratio	3.50
Debt [Member]
Debt Instrument [Line Items]
Consolidated ratio	3.25
Debt Covenant, Period 1 [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Leverage ratio	3.75
Debt Covenant, Period 2 [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Leverage ratio	4.00
Debt Covenant, Period 3 [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Leverage ratio	3.25