Segments - Schedule of Net Sales From External Customers (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Revenue from External Customer [Line Items]
Net sales	$ 516,159	$ 542,273	$ 522,219	$ 463,661	$ 443,674	$ 467,891	$ 460,086	$ 418,463	$ 2,044,312	$ 1,790,114
Percentage of net sales									100.00%	100.00%
Change in net sales									$ 254,198
Percentage change in net sales									14.20%
Total gross profit	$ 155,618	$ 154,037	$ 146,267	$ 134,437	$ 133,151	$ 135,883	$ 130,729	$ 122,426	$ 590,359	$ 522,189
Change in gross profit									$ 68,170
Gross margin percentage									28.90%	29.20%
Percentage change in gross margin									(0.30%)
Wallboard
Revenue from External Customer [Line Items]
Net sales									$ 781,257	$ 701,467
Percentage of net sales									38.20%	39.20%
Change in net sales									$ 79,790
Percentage change in net sales									11.40%
Suspended ceiling systems
Revenue from External Customer [Line Items]
Net sales									$ 379,809	$ 328,815
Percentage of net sales									18.60%	18.40%
Change in net sales									$ 50,994
Percentage change in net sales									15.50%
Metal framing
Revenue from External Customer [Line Items]
Net sales									$ 361,493	$ 280,410
Percentage of net sales									17.70%	15.70%
Change in net sales									$ 81,083
Percentage change in net sales									28.90%
Complementary and other products
Revenue from External Customer [Line Items]
Net sales									$ 521,753	$ 479,422
Percentage of net sales									25.50%	26.80%
Change in net sales									$ 42,331
Percentage change in net sales									8.80%