Segment Information - Schedule of Reconciling Information by Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	$ 1,700,436	$ 1,533,064
Depreciation & Amortization	22,819	23,592
Interest	26,742	36,157
Income before income taxes	25,402	4,120
Operating Segments
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	1,664,876	1,495,633
Depreciation & Amortization	17,188	17,715
Interest	26,320	22,926
Income before income taxes	37,531	31,039
Operating Segments \| Northeast
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	290,526	282,770
Depreciation & Amortization	3,219	3,477
Interest	5,682	4,899
Income before income taxes	638	2,937
Operating Segments \| Southeast
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	390,914	353,974
Depreciation & Amortization	2,613	2,506
Interest	5,894	5,325
Income before income taxes	11,292	10,048
Operating Segments \| South
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	472,944	449,852
Depreciation & Amortization	4,985	4,794
Interest	6,030	5,603
Income before income taxes	19,857	21,318
Operating Segments \| West
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	510,492	409,037
Depreciation & Amortization	6,371	6,938
Interest	8,714	7,099
Income before income taxes	5,744	(3,264)
All other
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	35,560	37,431
Depreciation & Amortization	5,631	5,877
Interest	422	13,231
Income before income taxes	$ (12,129)	$ (26,919)

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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