The cash inflow from an entity that is affiliated with the entity by means of direct or indirect ownership.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

Name:	us-gaap_ProceedsFromContributionsFromAffiliates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Discontinued Operations (Details) - USD ($) $ in Millions	1 Months Ended		9 Months Ended
Discontinued Operations (Details) - USD ($) $ in Millions	Jun. 30, 2015	Sep. 30, 2014	Sep. 30, 2015
Selected financial information of discontinued operations
Issuance of TopBuild Corp. debt			$ 200
TopBuild
Selected financial information of discontinued operations
Issuance of TopBuild Corp. debt	$ 200
TopBuild \| Installation and Other Services
Selected financial information of discontinued operations
Percentage of businesses planned for spinoff		100.00%