CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net sales
Building products	$ 572,120	$ 553,379
Construction services	185,580	174,039
Net sales	757,700	727,418
Cost of sales
Building products	426,083	420,531
Construction services	153,420	140,270
Cost of sales	579,503	560,801
Gross profit	178,197	166,617
Selling, general and administrative expenses	148,888	141,781
Depreciation expense	10,561	8,792
Amortization expense	3,821	5,245
Merger and integration costs	4,441	2,836
Impairment of assets	0	11,883
Total operating expenses	167,711	170,537
Income (loss) from operations	10,486	(3,920)
Other income (expense)
Interest expense	(6,088)	(8,231)
Other income, net	319	1,455
Income (loss) before income taxes	4,717	(10,696)
Income tax expense (benefit)	973	(3,940)
Net income (loss)	$ 3,744	$ (6,756)
Weighted average common shares outstanding
Basic (in shares)	66,692	65,338
Diluted (in shares)	67,186	65,338
Net income (loss) per common share
Basic (in dollars per share)	$ 0.06	$ (0.10)
Diluted (in dollars per share)	$ 0.06	$ (0.10)