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Business Combination - Additional Information (Detail) - Bianchi & Company, Inc. - USD ($) $ in Thousands	Jan. 09, 2020	Mar. 31, 2020
Business Acquisition [Line Items]
Cash consideration for certain assets acquired	$ 15,900
Fair value of intangible assets acquired		$ 9,440
Level 3 | Customer Relationships
Business Acquisition [Line Items]
Fair value of intangible assets acquired		$ 9,400

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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