Segments - Schedule of Net Sales From External Customers (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue from External Customer [Line Items]
Net sales	$ 535,446	$ 415,563	$ 1,544,133	$ 930,315
Change in Net Sales	$ 119,883		$ 613,818
Percentage Change in Net Sales	28.80%		66.00%
Gross Profit	$ 154,783	$ 112,968	$ 444,226	$ 264,548
Change in Gross Profit	$ 41,815		$ 179,678
Percentage Change in Gross Profit	37.00%		67.90%
Gross Margin Percentage	28.90%	27.20%	28.80%	28.40%
Percentage Change in Gross Margin	1.70%		0.40%
SBP
Revenue from External Customer [Line Items]
Net sales	$ 467,891	$ 378,280	$ 1,346,441	$ 893,032
Percentage of Net Sales	100.00%	100.00%	100.00%	100.00%
Change in Net Sales	$ 89,611		$ 453,409
Percentage Change in Net Sales	23.70%		50.80%
Gross Profit	$ 135,883	$ 105,154	$ 389,037	$ 256,734
Change in Gross Profit	$ 30,729		$ 132,303
Percentage Change in Gross Profit	29.20%		51.50%
Gross Margin Percentage	29.00%	27.80%	28.90%	28.70%
Percentage Change in Gross Margin	1.20%		0.20%
SBP | Wallboard
Revenue from External Customer [Line Items]
Net sales	$ 179,362	$ 145,193	$ 528,937	$ 371,634
Percentage of Net Sales	38.30%	38.40%	39.30%	41.60%
Change in Net Sales	$ 34,169		$ 157,303
Percentage Change in Net Sales	23.50%		42.30%
SBP | Suspended ceiling systems
Revenue from External Customer [Line Items]
Net sales	$ 91,933	$ 62,488	$ 247,921	$ 118,323
Percentage of Net Sales	19.60%	16.50%	18.40%	13.20%
Change in Net Sales	$ 29,445		$ 129,598
Percentage Change in Net Sales	47.10%		109.50%
SBP | Metal framing
Revenue from External Customer [Line Items]
Net sales	$ 71,420	$ 64,950	$ 212,486	$ 156,415
Percentage of Net Sales	15.30%	17.20%	15.80%	17.50%
Change in Net Sales	$ 6,470		$ 56,071
Percentage Change in Net Sales	10.00%		35.80%
SBP | Other
Revenue from External Customer [Line Items]
Net sales	$ 125,176	$ 105,649	$ 357,097	$ 246,660
Percentage of Net Sales	26.80%	27.90%	26.50%	27.70%
Change in Net Sales	$ 19,527		$ 110,437
Percentage Change in Net Sales	18.50%		44.80%
Mechanical Insulation
Revenue from External Customer [Line Items]
Net sales	$ 67,555	$ 37,283	$ 197,692	$ 37,283
Percentage of Net Sales	100.00%	100.00%	100.00%	100.00%
Change in Net Sales	$ 30,272		$ 160,409
Percentage Change in Net Sales	81.20%		430.20%
Gross Profit	$ 18,900	$ 7,814	$ 55,189	$ 7,814
Change in Gross Profit	$ 11,086		$ 47,375
Percentage Change in Gross Profit	141.90%		606.30%
Gross Margin Percentage	28.00%	21.00%	27.90%	21.00%
Percentage Change in Gross Margin	7.00%		6.90%
Mechanical Insulation | Commercial and industrial insulation
Revenue from External Customer [Line Items]
Net sales	$ 53,447	$ 28,128	$ 148,488	$ 28,128
Percentage of Net Sales	79.10%	75.40%	75.10%	75.40%
Change in Net Sales	$ 25,319		$ 120,360
Percentage Change in Net Sales	90.00%		427.90%
Mechanical Insulation | Non-insulation products
Revenue from External Customer [Line Items]
Net sales	$ 14,108	$ 9,155	$ 49,204	$ 9,155
Percentage of Net Sales	20.90%	24.60%	24.90%	24.60%
Change in Net Sales	$ 4,953		$ 40,049
Percentage Change in Net Sales	54.10%		437.50%