Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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- Definition

Debt Instrument Maturity Year

+ References

No definition available.

+ Details

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- Definition

The number of other subsidiaries that are excluded from guaranty provisions related to obligations.

+ References

No definition available.

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- Definition

Percentage Of Fair Value

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No definition available.

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

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

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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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 FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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Balance Type:	debit
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- Definition

Amount, after accumulated amortization, of debt issuance costs. 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 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

+ Details

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ 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

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Debt (Senior Notes) (Details) $ in Thousands	Apr. 05, 2017 USD ($)	Jul. 23, 2014 USD ($)	Oct. 31, 2017 USD ($)	Sep. 30, 2017 USD ($) subsidiary	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Debt issuance costs, net				$ 5,679	$ 6,983
The number of other subsidiaries excluded from guaranty provisions \| subsidiary				7
Term Loan
Debt Instrument [Line Items]
Debt issuance costs, net				$ 3,600
Unsecured Credit Facility \| Term Loan
Debt Instrument [Line Items]
Unsecured term loan outstanding		$ 75,000
Senior Notes.
Debt Instrument [Line Items]
Aggregate principal amount		$ 300,000
Interest rate		5.875%	5.875%
Senior notes due		2022
Maturity date		Aug. 01, 2022
Debt discount recorded				1,600
Debt issuance costs, net				$ 5,300
Percentage of issued price equal to face value		99.211%
Interest Rate Swap
Debt Instrument [Line Items]
Weighted average effective fixed interest rate	3.50%
Derivative instruments, notional amount	$ 400,000
Interest Rate Swap \| Term Loan
Debt Instrument [Line Items]
Aggregate principal amount	400,000
Interest Rate Swap \| Term Loan Maturing December 17,2021
Debt Instrument [Line Items]
Derivative instruments, notional amount	200,000
Interest Rate Swap \| Term Loan Maturing April 27, 2022
Debt Instrument [Line Items]
Derivative instruments, notional amount	$ 200,000
LIBOR \| Interest Rate Swap
Debt Instrument [Line Items]
Variable rate basis	LIBOR
Spread	1.50%
Private offering \| Subsequent Event \| Senior Notes.
Debt Instrument [Line Items]
Aggregate principal amount			$ 400,000
Interest rate			4.75%