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Subsequent Events (Details) - USD ($) $ in Thousands			12 Months Ended
	Jan. 18, 2018	Jan. 10, 2018	Dec. 31, 2017	Dec. 31, 2016
Subsequent Events
Cash consideration			$ 84,090	$ 3,476
Subsequent Event | ADO Products, LLC
Subsequent Events
Cash consideration		$ 21,300
Subsequent Event | Santa Rosa Insulation and Fireproofing, LLC
Subsequent Events
Cash consideration	$ 5,800

X

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

+ Details

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X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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