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Derivative Financial Instruments - Additional Information (Detail) - USD ($)		3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 02, 2020	Jun. 30, 2020	Jun. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Derivative Instruments Gain Loss [Line Items]
Realized losses on interest rate hedges reclassified to earnings		$ 1,107,000	$ 1,244,000
Cash Flow Hedge
Derivative Instruments Gain Loss [Line Items]
Derivative, notional amount		$ 400,000,000	$ 400,000,000		$ 400,000,000
Derivative, strike rate for the forward interest rate swap contract	0.985%
Cash Flow Hedge | Forward Interest Rate Swap
Derivative Instruments Gain Loss [Line Items]
Derivative, notional amount	$ 150,000,000
Derivative, effective date	May 17, 2022
Derivative, maturity date	May 17, 2027
Cash Flow Hedge | Interest Rate Swap and Collars | Scenario, Forecast
Derivative Instruments Gain Loss [Line Items]
Reclassified out of accumulated other comprehensive income to earnings, amount				$ 7,046,000

X

- Definition

Derivative effective date.

+ References

No definition available.

+ Details

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- Definition

Interest rate cash flow hedge gain loss reclassified to earnings net of mark to market.

+ References

No definition available.

+ Details

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- Definition

Stated rate on an interest rate forward or futures contract.

+ References

No definition available.

+ Details

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X

- 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 effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624177-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959

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- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959

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