Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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- Definition

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

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Telford Acquisition - Summary of Excess Purchase Price Over Estimated Fair Value of Net Assets Acquired (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Oct. 01, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Excess purchase price over estimated fair value of net assets acquired	$ 3,753,493		$ 3,652,309	$ 3,254,740
Telford Homes Plc [Member]
Business Acquisition [Line Items]
Estimated purchase price		$ 328,502
Less: Estimated fair value of net assets acquired (see table below)		297,669
Excess purchase price over estimated fair value of net assets acquired		$ 30,833