Segments - Schedule of Net Sales From External Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenue from External Customer [Line Items]
Net sales	$ 524,258	$ 514,872
Percentage of net sales	100.00%	100.00%
Change in net sales	$ 9,386
Percentage change in net sales	1.80%
Wallboard
Revenue from External Customer [Line Items]
Net sales	$ 202,268	$ 202,914
Percentage of net sales	38.60%	39.40%
Change in net sales	$ (646)
Percentage change in net sales	(0.30%)
Suspended ceiling systems
Revenue from External Customer [Line Items]
Net sales	$ 98,506	$ 88,996
Percentage of net sales	18.80%	17.30%
Change in net sales	$ 9,510
Percentage change in net sales	10.70%
Metal framing
Revenue from External Customer [Line Items]
Net sales	$ 93,334	$ 99,251
Percentage of net sales	17.80%	19.30%
Change in net sales	$ (5,917)
Percentage change in net sales	(6.00%)
Complementary and other products
Revenue from External Customer [Line Items]
Net sales	$ 130,150	$ 123,711
Percentage of net sales	24.80%	24.00%
Change in net sales	$ 6,439
Percentage change in net sales	5.20%