Goodwill and Other Intangibles - Additional Information (Detail) $ in Millions	3 Months Ended
Mar. 31, 2021 USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Disposition of goodwill	$ 6.3
Unamortized customer relationship intangibles	$ 1.9

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

Name:	us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration