Acquisitions	9 Months Ended
Jul. 31, 2015
Business Combinations [Abstract]
ACQUISITIONS	ACQUISITIONS 2015 Acquisitions Effective May 1, 2015, we acquired certain assets and assumed certain liabilities of CTS Services/Facility Support Services, a provider of HVAC service and energy solutions in government, commercial, and industrial buildings, for a purchase price of $18.8 million, subject to post-closing adjustments. The purchase price includes $3.8 million of contingent consideration that is based on the expected achievement of certain pre-established revenue goals. See Note 5, “Fair Value of Financial Instruments,” regarding the valuation of the contingent consideration liability. 2014 Acquisitions During 2014, we completed acquisitions for an aggregate purchase price of $52.9 million, which includes $3.3 million of contingent consideration. There were no material purchase price allocation adjustments recognized in the current period related to business combinations that occurred in 2014. Pro Forma and Other Supplemental Financial Information Pro forma and other supplemental financial information is not presented, as these acquisitions are not considered material business combinations individually or on a combined basis.

Acquisitions

9 Months Ended

Jul. 31, 2015

2015 Acquisitions

Effective May 1, 2015, we acquired certain assets and assumed certain liabilities of CTS Services/Facility Support Services, a provider of HVAC service and energy solutions in government, commercial, and industrial buildings, for a purchase price of $18.8 million, subject to post-closing adjustments. The purchase price includes $3.8 million of contingent consideration that is based on the expected achievement of certain pre-established revenue goals. See Note 5, “Fair Value of Financial Instruments,” regarding the valuation of the contingent consideration liability.

2014 Acquisitions

During 2014, we completed acquisitions for an aggregate purchase price of $52.9 million, which includes $3.3 million of contingent consideration. There were no material purchase price allocation adjustments recognized in the current period related to business combinations that occurred in 2014.

Pro Forma and Other Supplemental Financial Information

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