Revenue - Schedule of Disaggregation of Revenue by Product Classification (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation Of Revenue [Line Items]
Net Sales	$ 272.7	$ 214.7
ASC Topic 606 [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	272.7	214.7
ASC Topic 606 [Member] \| Millwork Products [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	125.4	96.2
ASC Topic 606 [Member] \| Building Products [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	125.8	101.9
ASC Topic 606 [Member] \| Wood Products [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	$ 21.5	$ 16.6

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

HUTTIG BUILDING PRODUCTS INC 10-Q