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

Derivative, Notional Amount, Quarterly Reduction, Amount. Expressed as an absolute value.

+ References

No definition available.

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- Definition

Leverage Ratio

+ References

No definition available.

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- Definition

Earnings Before Interest Taxes Depreciation and Amortization, Minimum Consolidated Amount

+ References

No definition available.

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Balance Type:	credit
Period Type:	duration

- Definition

Credit Facility Fixed Charge Coverage Ratio

+ References

No definition available.

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- Definition

Maximum possible value of increase in 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

No definition available.

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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

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

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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

Weighted average interest rate of debt outstanding.

+ References

No definition available.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- 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
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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))
-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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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

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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Data Type:	xbrli:monetaryItemType
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- 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.

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Long-term Debt and Financing Arrangements - Additional Information (Detail)		1 Months Ended	3 Months Ended	9 Months Ended
	Jul. 07, 2016 USD ($)	Apr. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2016	Jul. 06, 2016 USD ($)
Debt Instrument [Line Items]
Debt, weighted average interest rate percentage			2.10%	2.10%	1.40%
Interest Rate Swap
Debt Instrument [Line Items]
Derivative agreement term		3 years
Derivative notional amount		$ 60,000,000.0
Derivative, fixed rate		1.58%
Quarterly reduction to notional amount			$ 5,000,000.0
Amended Credit Facility
Debt Instrument [Line Items]
Standby letters of credit, outstanding			4,000,000	$ 4,000,000
Revolving Credit Facility \| Amended Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 175,000,000		$ 175,000,000.0	$ 175,000,000.0		$ 100,000,000
Maximum borrowing capacity possible value of increase (not to exceed)	$ 50,000,000
Credit facility fixed charge coverage ratio (not less than)				2.0
Required consolidated leverage ratio as of end of each fiscal quarter (no greater than)			3.0	3.0
Minimum required Consolidated EBITDA for preceding 12 month period				$ 30,000,000
Line of credit facility, remaining borrowing capacity			$ 78,400,000	78,400,000
Borrowings outstanding			92,600,000	$ 92,600,000
Revolving Credit Facility \| Amended Credit Facility \| Minimum
Debt Instrument [Line Items]
Quarterly commitment fee percentage				0.175%
Revolving Credit Facility \| Amended Credit Facility \| Maximum
Debt Instrument [Line Items]
Quarterly commitment fee percentage				0.30%
Revolving Credit Facility \| Amended Credit Facility \| Base Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate				0.15%
Revolving Credit Facility \| Amended Credit Facility \| Base Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
Revolving Credit Facility \| Amended Credit Facility \| Federal Funds Effective Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate				0.50%
Revolving Credit Facility \| Amended Credit Facility \| Eurocurrency Rate
Debt Instrument [Line Items]
Basis spread on variable rate				1.00%
Revolving Credit Facility \| Amended Credit Facility \| Eurocurrency Rate \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate				0.75%
Revolving Credit Facility \| Amended Credit Facility \| Eurocurrency Rate \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate				1.75%
Foreign Credit Facility
Debt Instrument [Line Items]
Line of credit facility, remaining borrowing capacity			11,600,000	$ 11,600,000
Borrowings outstanding			100,000	100,000
Standby letters of credit, outstanding			$ 3,000,000	$ 3,000,000
Foreign Credit Facility \| Other Foreign Bank Borrowings \| Minimum
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage			0.80%	0.80%
Foreign Credit Facility \| Other Foreign Bank Borrowings \| Maximum
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage			3.40%	3.40%
Capital Leases \| Minimum
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage			1.65%	1.65%
Capital Leases \| Maximum
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage			2.09%	2.09%