The maximum amount of consolidated funded net debt as defined in the Amended and Restated Credit Agreement.

No definition available.

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- Definition

Increase decrease in revolving credit facility applicable rate.

+ 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

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Amount of the required periodic payments applied to principal.

+ References

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Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
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-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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Period Type:	duration

- 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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

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Period Type:	instant

- Definition

Date the credit facility first became available, in CCYY-MM-DD format.

+ References

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Balance Type:	na
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- Definition

The effective interest rate during the reporting period.

+ References

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
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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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- 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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Long-Term Debt (Amended and Restated Senior Credit Facility) - Additional Information (Detail) - USD ($) $ in Thousands														3 Months Ended				12 Months Ended
	Nov. 15, 2019	Feb. 27, 2019	Feb. 06, 2019	Apr. 17, 2018	Mar. 29, 2018	Mar. 22, 2018	Mar. 21, 2018	Dec. 29, 2017	May 10, 2017	May 09, 2017	Dec. 15, 2015	Dec. 31, 2012	Apr. 01, 2011	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 15, 2014
Debt Instrument [Line Items]
Debt extinguishment costs																			$ (1,815)	$ (810)
Term loan repayments	$ 20,000			$ 15,000				$ 22,500
Consolidated funded debt, unrestricted and unencumbered cash to consolidated EBITDA																					$ 50,000
Term Loan A- Facility [Member]
Debt Instrument [Line Items]
Line of credit					$ 400,000
Tranche B-1 Repricing Amendment [Member]
Debt Instrument [Line Items]
Term loan repayments								7,700
Tranche B-2 Repricing Amendment [Member]
Debt Instrument [Line Items]
Term loan repayments								$ 14,800
Tranche B-3 Facility [Member]
Debt Instrument [Line Items]
Term loan repayments	7,000			5,100
Tranche B-4 Facilities [Member]
Debt Instrument [Line Items]
Term loan repayments	$ 13,000			$ 9,900
Eurodollar [Member]
Debt Instrument [Line Items]
Interest on borrowings																		2.50%
Base Rate Loans [Member]
Debt Instrument [Line Items]
Interest on borrowings																		1.50%
Amended and Restated Senior Credit Facility [Member]
Debt Instrument [Line Items]
Date entered into an agreement												Dec. 31, 2012	Apr. 01, 2011
Amount available under revolving line of credit																		$ 485,100
Debt instrument maturity date											Nov. 30, 2021									Feb. 11, 2022
Term loan repayments																	$ 1,200
Amended and Restated Senior Credit Facility [Member] \| March 31, 2020 to December 31, 2020 [Member]
Debt Instrument [Line Items]
Term loan principal repayments											$ 7,100
Term loan repayments														$ 1,200
Amended and Restated Senior Credit Facility [Member] \| March 31, 2021 to September 30, 2021 [Member]
Debt Instrument [Line Items]
Term loan principal repayments											$ 9,500
Amended and Restated Senior Credit Facility [Member] \| March 31, 2019 to December 31, 2019 [Member]
Debt Instrument [Line Items]
Term loan repayments																$ 1,200
Amended and Restated Senior Credit Facility [Member] \| September 30, 2015 to December 31, 2015 [Member]
Debt Instrument [Line Items]
Term loan repayments															$ 1,200
Amended and Restated Senior Credit Facility [Member] \| Standby Letters of Credit [Member]
Debt Instrument [Line Items]
Standby letters of credit outstanding																		$ 14,900
Amended and Restated Senior Credit Facility [Member] \| TLB Facility Due on February 16, 2023 [Member]
Debt Instrument [Line Items]
Term loan repayments																	$ 2,300
Amended and Restated Senior Credit Facility [Member] \| TLB Facility Due on February 16, 2023 [Member] \| March 31, 2020 to December 31, 2020 [Member]
Debt Instrument [Line Items]
Term loan repayments														$ 2,300
Amended and Restated Senior Credit Facility [Member] \| TLB Facility Due on February 16, 2023 [Member] \| March 31, 2019 to December 31, 2019 [Member]
Debt Instrument [Line Items]
Term loan repayments																$ 2,300
Amended and Restated Senior Credit Facility [Member] \| TLB Facility Due on February 16, 2023 [Member] \| September 30, 2015 to December 31, 2015 [Member]
Debt Instrument [Line Items]
Term loan repayments															$ 2,300
Amended and Restated Senior Credit Facility [Member] \| Third Repricing Amendment [Member]
Debt Instrument [Line Items]
Debt extinguishment costs									$ 800
Amended and Restated Senior Credit Facility [Member] \| Repricing Facilities Amendments [Member]
Debt Instrument [Line Items]
Debt extinguishment costs						$ 900
Revolving credit facility applicable rate					0.25%
Amended and Restated Senior Credit Facility [Member] \| Repricing Facilities Amendments [Member] \| Senior Secured Revolving Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit					$ 500,000
Amended and Restated Senior Credit Facility [Member] \| Repricing Facilities Amendments [Member] \| Term Loan A- Facility [Member]
Debt Instrument [Line Items]
Line of credit					$ 380,000
Amended and Restated Senior Credit Facility [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Basis spread on variable rate																		1.00%
Amended and Restated Senior Credit Facility [Member] \| Eurodollar [Member] \| Third Repricing Amendment [Member]
Debt Instrument [Line Items]
Interest on borrowings									2.75%	3.00%
Amended and Restated Senior Credit Facility [Member] \| Eurodollar [Member] \| Repricing Facilities Amendments [Member]
Debt Instrument [Line Items]
Interest on borrowings						2.50%	2.75%
Amended and Restated Senior Credit Facility [Member] \| Base Rate Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate																		0.50%
Amended and Restated Senior Credit Facility [Member] \| Base Rate Loans [Member] \| Third Repricing Amendment [Member]
Debt Instrument [Line Items]
Interest on borrowings									1.75%	2.00%
Amended and Restated Senior Credit Facility [Member] \| Base Rate Loans [Member] \| Repricing Facilities Amendments [Member]
Debt Instrument [Line Items]
Interest on borrowings						1.50%	1.75%
Amended and Restated Senior Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Interest on borrowings																		2.50%
Eleventh Amendment [Member]
Debt Instrument [Line Items]
Date entered into an agreement			Feb. 06, 2019
Twelfth Amendment [Member]
Debt Instrument [Line Items]
Date entered into an agreement		Feb. 27, 2019