Payments to third party to amend certain provisions of a debt agreement.

No definition available.

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- Definition

Debt instrument, fee percentage.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Periodic Payment, Percent Of Principal, First Payment Period

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Periodic Payment, Percent Of Principal, Second Payment Period

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Periodic Payment, Percent Of Principal, Third Payment Period

+ References

No definition available.

+ Details

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- Definition

Secured debt and line of credit facility maximum secured leverage ratio

+ 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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Period Type:	duration

- 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

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-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

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

The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

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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

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))
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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-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

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

- 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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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

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Debt and Short-Term Borrowings - Additional Information (Detail)		3 Months Ended
	Apr. 17, 2013 USD ($)	Mar. 31, 2017 USD ($)	Jun. 30, 2016 USD ($)	Sep. 30, 2018	Dec. 31, 2016 USD ($)	Oct. 31, 2016 USD ($)	May 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)
Debt Instrument [Line Items]
Credit facility amendment fee percentage			0.50%
Credit facility amendment fee			$ 3,600,000
Non interest bearing financing agreement							$ 700,000	$ 4,600,000	$ 1,100,000
Note payable		$ 2,900,000			$ 3,400,000
Losses reclassified from accumulated other comprehensive loss into income		300,000
Losses expected to be reclassified from accumulated other comprehensive loss into income in the next 12 months		$ 1,800,000
Credit Facility
Debt Instrument [Line Items]
Maximum secured leverage ratio		4.75
Credit Facility \| Forecast
Debt Instrument [Line Items]
Maximum secured leverage ratio				4.25
Notes Payable
Debt Instrument [Line Items]
Non interest bearing financing agreement						$ 1,100,000
2013 Credit Agreement, Term A Loan \| Credit Facility
Debt Instrument [Line Items]
Maximum amount under credit facilities	$ 300,000,000.0				250,000,000
Percent of original principal amount amortized in first payment period		1.875%
Percent of original principal amount amortized in second payment period		2.50%
Margin interest rate		2.25%
Secured credit facilities		$ 28,900,000			29,500,000
2013 Credit Agreement, Term A Loan \| Credit Facility \| LIBOR
Debt Instrument [Line Items]
Margin interest rate	2.50%
2013 Credit Agreement, Term A Loan \| Credit Facility \| Alternate Base Rate
Debt Instrument [Line Items]
Margin interest rate	1.50%
2013 Credit Agreement, Term A Loan \| Credit Facility \| Maturity not extended
Debt Instrument [Line Items]
Maximum amount under credit facilities					30,000,000
2013 Credit Agreement, Term B Loan \| Credit Facility
Debt Instrument [Line Items]
Maximum amount under credit facilities	$ 400,000,000.0
2013 Credit Agreement, Revolving Facility \| Credit Facility
Debt Instrument [Line Items]
Maximum amount under credit facilities	$ 100,000,000.0
Term A due January 17, 2020 \| Credit Facility
Debt Instrument [Line Items]
Percent of original principal amount amortized in first payment period		1.50%
Percent of original principal amount amortized in second payment period		1.875%
Percent of original principal amount amortized in third payment period		2.50%
Secured credit facilities		$ 212,700,000			216,000,000
Term A due January 17, 2020 \| Credit Facility \| LIBOR
Debt Instrument [Line Items]
Margin interest rate	2.50%	2.50%
Term A due January 17, 2020 \| Credit Facility \| Alternate Base Rate
Debt Instrument [Line Items]
Margin interest rate	1.50%
Term A due January 17, 2020 \| Credit Facility \| Maturity extended
Debt Instrument [Line Items]
Maximum amount under credit facilities					219,000,000
Term B due on April 17, 2020 \| Credit Facility
Debt Instrument [Line Items]
Percent of original principal amount amortized in first payment period		0.25%
Secured credit facilities		$ 385,000,000			386,000,000
Term B due on April 17, 2020 \| Credit Facility \| LIBOR
Debt Instrument [Line Items]
Margin interest rate	2.75%	0.75%
Term B due on April 17, 2020 \| Credit Facility \| Alternate Base Rate
Debt Instrument [Line Items]
Margin interest rate	1.75%
Senior Secured Revolving Credit Facility \| Credit Facility
Debt Instrument [Line Items]
Maximum amount under credit facilities					100,000,000
Additional borrowing capacity available under the Revolving Facility		$ 73,000,000
Note payable		$ 27,000,000			28,000,000
Senior Secured Revolving Credit Facility \| Credit Facility \| LIBOR
Debt Instrument [Line Items]
Margin interest rate	2.50%	2.50%
Senior Secured Revolving Credit Facility \| Credit Facility \| Alternate Base Rate
Debt Instrument [Line Items]
Margin interest rate	1.50%
Senior Secured Revolving Credit Facility \| Credit Facility \| Maturity extended
Debt Instrument [Line Items]
Maximum amount under credit facilities					65,000,000
Senior Secured Revolving Credit Facility \| Credit Facility \| Maturity not extended
Debt Instrument [Line Items]
Maximum amount under credit facilities					$ 35,000,000
Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Commitment fee for the unused portion		0.125%
Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Commitment fee for the unused portion		0.375%