Letter of Credit Facility, Number of Covenants

No definition available.

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- Definition

Line of Credit Facility, Option To Increase Maximum Borrowing Capacity

+ 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.

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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

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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

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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- 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

+ Details

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- 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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Period Type:	duration

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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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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- 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

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

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

Reference 2: 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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- Details

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Credit Agreement (Details) $ in Thousands		12 Months Ended
Credit Agreement (Details) $ in Thousands	May 31, 2016 USD ($)	Dec. 31, 2017 USD ($) covenants	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Feb. 08, 2011 USD ($)
Line of Credit Facility [Line Items]
Line of Credit Facility, Fair Value of Amount Outstanding	$ 105,000		$ 86,300
Bank Of America February Two Thousand Eleven New Credit Agreement
Line of Credit Facility [Line Items]
Maximum borrowing capacity					$ 200,000
Option to increase maximum borrowing capacity	200,000
Term of agreement		5 years
Commitment fee rate		0.175%
Line of Credit Facility, Fair Value of Amount Outstanding		$ 18,400
Letter of Credit Facility, Number of Covenants \| covenants		2
Bank Of America February Two Thousand Eleven New Credit Agreement \| Minimum
Line of Credit Facility [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		0.15%
Bank Of America February Two Thousand Eleven New Credit Agreement \| Maximum
Line of Credit Facility [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		0.30%
Long-term Debt \| Bank Of America February Two Thousand Eleven New Credit Agreement
Line of Credit Facility [Line Items]
Term loan		$ 150,000
Credit Agreement
Line of Credit Facility [Line Items]
Long-term Debt, Gross		$ 0		$ 97,500
Line of Credit \| Revolving Credit Facility \| Amended Credit Agreement
Line of Credit Facility [Line Items]
Maximum borrowing capacity	500,000
Line of Credit \| Revolving Credit Facility \| Credit Agreement
Line of Credit Facility [Line Items]
Proceeds from Lines of Credit	$ 105,000
LIBOR \| Bank Of America February Two Thousand Eleven New Credit Agreement
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate at Period End		2.944%
Prime Rate \| Bank Of America February Two Thousand Eleven New Credit Agreement
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate at Period End		4.875%
Prime Rate \| Bank Of America February Two Thousand Eleven New Credit Agreement \| Minimum
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.125%
Prime Rate \| Bank Of America February Two Thousand Eleven New Credit Agreement \| Maximum
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate		2.125%