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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
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Period Type:	instant

Acquisitions - Narrative (Details) $ in Thousands	Sep. 30, 2020 USD ($)	Sep. 01, 2020 branch	Feb. 03, 2020 branch
Marriott Drywall Materials, Inc.
Business Acquisition [Line Items]
Number of branch locations		1
Insulation Distributors, Inc.
Business Acquisition [Line Items]
Number of branch locations			2
Marriott Drywall Materials Inc. and Insulation Distributors, Inc.
Business Acquisition [Line Items]
Total net assets acquired \| $	$ 12,163