Fronting Fee Percentage Charged For Issuance Of Letters Of Credit

No definition available.

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- Definition

Line of Credit, Participation Fee Percentage

+ References

No definition available.

+ Details

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- Definition

Maximum Percentage Of Capital Stock Guaranteed By Companys Material Non US Subsidiaries For Obligations Under The Senior Credit Facility

+ References

No definition available.

+ Details

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- Definition

Amount of amortization expense attributable to debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(8))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

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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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
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-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

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.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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Balance Type:	debit
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

+ Details

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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

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ Details

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

- Definition

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

+ References

No definition available.

+ Details

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Debt and Credit Arrangements - Senior Secured Revolving Credit Facility and Term Loan (Details) - USD ($)		3 Months Ended		6 Months Ended
	Jun. 14, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Debt Instrument
Financing costs amortization		$ 600,000	$ 400,000	$ 1,000,000.0	$ 700,000
Revolving Credit Facility
Debt Instrument
Financing costs amortization		$ 200,000	200,000	$ 400,000	300,000
Revolving Credit Facility \| Credit Facilities 2019
Debt Instrument
Maximum percentage of capital stock guaranteed by company		65.00%		65.00%
Revolving Credit Facility \| Credit Facilities 2019 \| Adjusted Base Rate \| Minimum
Debt Instrument
Debt instrument variable interest rate (percent)	0.25%
Revolving Credit Facility \| Credit Facilities 2019 \| Adjusted Base Rate \| Maximum
Debt Instrument
Debt instrument variable interest rate (percent)	1.25%
Revolving Credit Facility \| Credit Facilities 2019 \| LIBOR \| Minimum
Debt Instrument
Debt instrument variable interest rate (percent)	1.25%
Revolving Credit Facility \| Credit Facilities 2019 \| LIBOR \| Maximum
Debt Instrument
Debt instrument variable interest rate (percent)	2.25%
Revolving Credit Facility \| Senior secured revolving credit facility
Debt Instrument
Maximum borrowing capacity	$ 550,000,000.0
Line of credit fronting fee (as a percentage)		0.125%		0.125%
Debt issuance costs		$ 10,000,000.0		$ 10,000,000.0
Debt instrument, term				5 years
Unamortized debt issuance costs		9,900,000		$ 9,900,000
Long term debt		$ 96,700,000		$ 96,700,000
Weighted average interest rate (percent)		2.25%		2.25%
Letters of credit outstanding		$ 51,400,000		$ 51,400,000
Line of credit remaining borrowing amount		401,800,000		401,800,000
Interest expense		2,600,000		$ 2,500,000
Revolving Credit Facility \| Senior secured revolving credit facility \| Minimum
Debt Instrument
Line of credit commitment fee (as a percentage)	0.25%
Line of credit participation fee (as a percentage)				1.25%
Revolving Credit Facility \| Senior secured revolving credit facility \| Maximum
Debt Instrument
Line of credit commitment fee (as a percentage)	0.35%
Line of credit participation fee (as a percentage)				2.25%
Revolving Credit Facility \| Term Loan 2019 Credit Facility
Debt Instrument
Maximum borrowing capacity	$ 450,000,000.0
Debt issuance costs		6,100,000		$ 6,100,000
Debt instrument, term				5 years
Long term debt		0		$ 0		$ 0
Revolving Credit Facility \| Term Loan 2019 Credit Facility \| Minimum
Debt Instrument
Line of credit commitment fee (as a percentage)	0.20%
Revolving Credit Facility \| Term Loan 2019 Credit Facility \| Maximum
Debt Instrument
Line of credit commitment fee (as a percentage)	0.35%
Revolving Credit Facility \| Senior secured revolving credit facility due 2022
Debt Instrument
Maximum borrowing capacity	$ 550,000,000.0
Financing costs amortization				200,000
Long term debt						$ 329,300,000
Interest expense			2,500,000		2,500,000
Revolving Credit Facility Sub-limit - Letters of Credit \| Senior secured revolving credit facility
Debt Instrument
Maximum borrowing capacity	100,000,000.0
Revolving Credit Facility Sub-limit - Discretionary Letters of Credit \| Senior secured revolving credit facility
Debt Instrument
Maximum borrowing capacity	250,000,000.0
Revolving Credit Facility Sub-limit - Swingline \| Senior secured revolving credit facility
Debt Instrument
Maximum borrowing capacity	$ 50,000,000.0
Interest expense		$ 5,800,000		$ 5,700,000
Revolving Credit Facility Sub-limit - Swingline \| Senior secured revolving credit facility due 2022
Debt Instrument
Interest expense			$ 5,700,000		$ 5,700,000