Acquisitions	3 Months Ended
Jan. 31, 2017
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS 2017 Acquisitions Effective December 1, 2016, we acquired all of the outstanding stock of Mechanical Solutions, Inc. (“MSI”), a provider of specialized HVAC, chiller, and plumbing services, for a purchase price of $12.6 million, subject to post-closing adjustments. The purchase price includes up to $1.0 million of undiscounted contingent consideration that is based on the expected achievement of certain pre-established revenue goals. See Note 8, “Fair Value of Financial Instruments,” regarding our valuation of contingent consideration liabilities. As of December 1, 2016, the operations of MSI are included in our Technical Solutions segment. Effective December 1, 2016, we acquired all of the outstanding stock of OFJ Connections Ltd (“OFJ”), a provider of airport transportation services in the United Kingdom, for a purchase price of $6.3 million, subject to post-closing adjustments. As of December 1, 2016, the operations of OFJ are included in our Aviation segment. 2016 Acquisitions Effective September 30, 2016, we acquired all of the outstanding stock of BRBIBR Limited, a company which holds all of the outstanding shares of 8 Solutions Ltd. (“8 Solutions”), a provider of technical cleaning services to data centers in the United Kingdom and certain other locations, for a purchase price of $16.1 million, subject to post-closing adjustments. As of September 30, 2016, the operations of 8 Solutions are included in our Business & Industry segment. 8 Solutions has been renamed ABM Critical Solutions Limited. Effective December 1, 2015, we acquired all of the outstanding stock of Westway Services Holdings (2014) Ltd. (“Westway”), a provider of technical services to clients in the United Kingdom, for a purchase price of $81.0 million. This acquisition expanded the geographical reach of our technical services business to the United Kingdom, resulting in the allocation of a significant portion of the purchase price to goodwill. As such, we recorded goodwill and intangible assets of $53.8 million and $22.5 million, respectively. The goodwill associated with this acquisition is not deductible for tax purposes. As of December 1, 2015, the operations of Westway are included in our Technical Solutions segment. Pro Forma and Other Supplemental Financial Information Pro forma and other supplemental financial information is not presented for these acquisitions, as they are not considered material business combinations individually or on a combined basis.

Acquisitions

3 Months Ended

Jan. 31, 2017

ACQUISITIONS

2017 Acquisitions

Effective December 1, 2016, we acquired all of the outstanding stock of Mechanical Solutions, Inc. (“MSI”), a provider of specialized HVAC, chiller, and plumbing services, for a purchase price of $12.6 million, subject to post-closing adjustments. The purchase price includes up to $1.0 million of undiscounted contingent consideration that is based on the expected achievement of certain pre-established revenue goals. See Note 8, “Fair Value of Financial Instruments,” regarding our valuation of contingent consideration liabilities. As of December 1, 2016, the operations of MSI are included in our Technical Solutions segment.

Effective December 1, 2016, we acquired all of the outstanding stock of OFJ Connections Ltd (“OFJ”), a provider of airport transportation services in the United Kingdom, for a purchase price of $6.3 million, subject to post-closing adjustments. As of December 1, 2016, the operations of OFJ are included in our Aviation segment.

2016 Acquisitions

Effective September 30, 2016, we acquired all of the outstanding stock of BRBIBR Limited, a company which holds all of the outstanding shares of 8 Solutions Ltd. (“8 Solutions”), a provider of technical cleaning services to data centers in the United Kingdom and certain other locations, for a purchase price of $16.1 million, subject to post-closing adjustments. As of September 30, 2016, the operations of 8 Solutions are included in our Business & Industry segment. 8 Solutions has been renamed ABM Critical Solutions Limited.

Effective December 1, 2015, we acquired all of the outstanding stock of Westway Services Holdings (2014) Ltd. (“Westway”), a provider of technical services to clients in the United Kingdom, for a purchase price of $81.0 million. This acquisition expanded the geographical reach of our technical services business to the United Kingdom, resulting in the allocation of a significant portion of the purchase price to goodwill. As such, we recorded goodwill and intangible assets of $53.8 million and $22.5 million, respectively. The goodwill associated with this acquisition is not deductible for tax purposes. As of December 1, 2015, the operations of Westway are included in our Technical Solutions segment.

Pro Forma and Other Supplemental Financial Information

Pro forma and other supplemental financial information is not presented for these acquisitions, as they are not considered material business combinations individually or on a combined basis.