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Compensation Plans - Expense Recognition of Deferred Compensation (Detail) - Restricted stock	Jun. 30, 2021 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2019 (Remaining Period)	$ 4,129,469
2020	7,359,397
2021	5,499,650
2022	1,917,053
2023	314,519
Thereafter	9,737
Total	$ 19,229,825

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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