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Derivative Financial Instruments - Summary of Aggregate Amount and Estimated Net Fair Values of Derivative Instruments (Detail) - Cash Flow Hedge - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Derivative Instruments Gain Loss [Line Items]
Notional	$ 400,000,000	$ 400,000,000
Fair Value of Assets	853,000
Fair Value of Liabilities	19,386,000	29,842,000
Interest Rate Swap
Derivative Instruments Gain Loss [Line Items]
Notional	150,000,000	150,000,000
Fair Value of Liabilities	9,624,000	694,000
Interest Rate Collar
Derivative Instruments Gain Loss [Line Items]
Notional	250,000,000	250,000,000
Fair Value of Liabilities	9,762,000	13,331,000
Forward Interest Rate Swap
Derivative Instruments Gain Loss [Line Items]
Fair Value of Assets	$ 853,000
Fair Value of Liabilities		$ 15,817,000

X

- Definition

Fair value of all asset derivatives designated as cash flow 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 4B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959

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- Definition

Fair value of all liability derivatives designated as cash flow 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 4B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959

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+ References

No definition available.

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- 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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