Goodwill and Intangible Assets, Net Goodwill and Intangible Assets (Intangible Rollforward) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-lived Intangible Assets [Roll Forward]
Net Finite-lived Intangible Assets, beginning of period	$ 167,612	$ 167,215	$ 187,936
Amortization	(15,015)	(16,003)	(20,721)
Net Finite-lived Intangible Assets, end of period	158,888	167,612	167,215
Trademarks [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount, beginning of period	5,350	5,350	5,350
Accumulated Amortization, beginning of period	(4,558)	(2,548)	(408)
Amortization	(83)	(2,010)	(2,140)
Gross Carrying Amount, end of period	4,350	5,350	5,350
Accumulated Amortization, end of period	(4,350)	(4,558)	(2,548)
Customer relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount, beginning of period	195,600	179,700	179,700
Accumulated Amortization, beginning of period	(29,294)	(15,509)	(2,664)
Amortization	(14,743)	(13,785)	(12,845)
Gross Carrying Amount, end of period	202,600	195,600	179,700
Accumulated Amortization, end of period	(44,037)	(29,294)	(15,509)
Non-compete Agreements [Member]
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Amount, beginning of period	7,012	6,512	6,512
Accumulated Amortization, beginning of period	(6,498)	(6,290)	(554)
Amortization	(189)	(208)	(5,736)
Gross Carrying Amount, end of period	7,012	7,012	6,512
Accumulated Amortization, end of period	(6,687)	(6,498)	$ (6,290)
Code Plus [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisitions		2,800
Code Plus [Member] \| Customer relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisitions		2,300
Code Plus [Member] \| Non-compete Agreements [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisitions		500
TexPly [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisitions		13,600
TexPly [Member] \| Customer relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisitions		$ 13,600
WE Shone Co [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisitions	7,000
WE Shone Co [Member] \| Customer relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisitions	7,000
Coleman Floor [Member]
Finite-lived Intangible Assets [Roll Forward]
Disposals, net	(709)
Coleman Floor [Member] \| Trademarks [Member]
Finite-lived Intangible Assets [Roll Forward]
Disposals, gross	(1,000)
Disposals, accumulated amortization	$ 291

Amount of decrease in intangible assets accumulated amortization from an disposition.

No definition available.

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- Definition

Amount of decrease in assets, excluding financial assets, lacking physical substance with a definite life, from a disposition.

+ References

No definition available.

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Amount of net decrease in assets, excluding financial assets, lacking physical substance with a definite life, from a disposition.

+ References

No definition available.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

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