Acquisitions - Additional Information (Detail) - Water-Right, Inc - USD ($) $ in Millions		3 Months Ended
Apr. 08, 2019	Mar. 31, 2020
Business Acquisition [Line Items]
Percentage of ownership interest acquired	100.00%
Aggregate cash purchase price, net of cash acquired	$ 107.0
Acquired intangible assets	60.4
Effective Date Of Acquisition		Apr. 08, 2019
Escrow Deposit [Member]
Business Acquisition [Line Items]
consideration to former owners		$ 4.0
Trademarks [Member]
Business Acquisition [Line Items]
Acquired intangible assets, not subject to amortization	19.0
Noncompete agreements
Business Acquisition [Line Items]
Acquired intangible assets, subject to amortization	$ 1.2
Acquired intangible assets, amortization period, in years	7 years 6 months
Customer relationships
Business Acquisition [Line Items]
Acquired intangible assets, subject to amortization	$ 40.2
Acquired intangible assets, amortization period, in years	20 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of tangible or intangible assets, including a business or subsidiary of the acquirer transferred by the entity to the former owners of the acquiree. Excludes cash.

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