Restructuring and Acquisition Related Expenses	12 Months Ended
Dec. 31, 2015
Restructuring and Related Activities [Abstract]
Restructuring and Acquisition Related Expenses	Restructuring and Acquisition Related Expenses Acquisition Related Expenses Acquisition related expenses, which include external costs such as legal, accounting and advisory fees, totaled $6.4 million, $3.7 million, and $6.7 million, for the years ended December 31, 2015, 2014 and 2013, respectively. Of our 2015 expenses, $2.5 million was related to our definitive agreement to acquire the holding company of Rhiag-Inter Auto Parts Italia S.p.A, $1.6 million was related to our acquisitions of eleven aftermarket parts distribution businesses in the Netherlands, $0.8 million was related to our acquisition of Coast, and $1.5 million was related to other completed and potential acquisitions. Our 2014 expenses included $1.9 million related to our acquisitions of seven aftermarket parts distribution businesses in the Netherlands; the remainder of our 2014 expenses related to our acquisition of a supplier of replacement parts, supplies and accessories for recreational vehicles in our Specialty segment as well as other completed and potential acquisitions. Our 2013 expenses included $3.6 million related to our acquisition of Sator in May 2013, $1.4 million related to our acquisitions of five U.K.-based paint distribution businesses, and $0.9 million related to our acquisition of Keystone Specialty in January 2014. Acquisition related costs are expensed as incurred. Acquisition Integration Plans During the year ended December 31, 2015, we incurred $13.1 million of restructuring expenses. Expenses incurred were primarily a result of the integration of our acquisition of Parts Channel into our existing North American wholesale business, and the integration of our Coast acquisition and our October 2014 acquisition of a supplier of parts for recreational vehicles into our Specialty business. These integration activities included the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, and moving expenses. During the year ended December 31, 2014, we incurred $5.8 million of restructuring expenses as a result of the integration of our acquisition of Keystone Specialty into our existing business. These integration activities included the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, and moving expenses. Also during 2014, we incurred $1.9 million, $1.0 million, and $0.8 million of other restructuring costs related to our European, North American, and Specialty acquisitions, respectively. These costs are a result of activities to integrate our acquisitions into our existing business, including the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, moving expenses, and other third party services directly related to our acquisitions. We expect to incur additional expenses related to the integration of certain of our acquisitions into our existing operations in 2016. These integration activities are expected to include the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, and moving expenses. Future expenses to complete these integration plans are expected to be less than $9.0 million. During the year ended December 31, 2013, we incurred $2.1 million of restructuring expenses related to the integration of certain of our 2013 European acquisitions and $1.4 million of restructuring expenses related to the integration of certain of our 2012 North American acquisitions. Our integration activities included the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, moving expenses, and other third party services directly related to the integration of these acquisitions. European Restructuring Plan In the third quarter of 2014, we initiated restructuring activities to eliminate overlapping positions within certain of our European operations. As a result of these restructuring activities, we incurred $1.6 million of expenses during the year ended December 31, 2014, primarily for severance costs to terminated employees.

Restructuring and Acquisition Related Expenses

Acquisition Related Expenses

Acquisition related expenses, which include external costs such as legal, accounting and advisory fees, totaled $6.4 million, $3.7 million, and $6.7 million, for the years ended December 31, 2015, 2014 and 2013, respectively. Of our 2015 expenses, $2.5 million was related to our definitive agreement to acquire the holding company of Rhiag-Inter Auto Parts Italia S.p.A, $1.6 million was related to our acquisitions of eleven aftermarket parts distribution businesses in the Netherlands, $0.8 million was related to our acquisition of Coast, and $1.5 million was related to other completed and potential acquisitions.

Our 2014 expenses included $1.9 million related to our acquisitions of seven aftermarket parts distribution businesses in the Netherlands; the remainder of our 2014 expenses related to our acquisition of a supplier of replacement parts, supplies and accessories for recreational vehicles in our Specialty segment as well as other completed and potential acquisitions.

Our 2013 expenses included $3.6 million related to our acquisition of Sator in May 2013, $1.4 million related to our acquisitions of five U.K.-based paint distribution businesses, and $0.9 million related to our acquisition of Keystone Specialty in January 2014. Acquisition related costs are expensed as incurred.

Acquisition Integration Plans

During the year ended December 31, 2015, we incurred $13.1 million of restructuring expenses. Expenses incurred were primarily a result of the integration of our acquisition of Parts Channel into our existing North American wholesale business, and the integration of our Coast acquisition and our October 2014 acquisition of a supplier of parts for recreational vehicles into our Specialty business. These integration activities included the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, and moving expenses.

During the year ended December 31, 2014, we incurred $5.8 million of restructuring expenses as a result of the integration of our acquisition of Keystone Specialty into our existing business. These integration activities included the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, and moving expenses.

Also during 2014, we incurred $1.9 million, $1.0 million, and $0.8 million of other restructuring costs related to our European, North American, and Specialty acquisitions, respectively. These costs are a result of activities to integrate our acquisitions into our existing business, including the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, moving expenses, and other third party services directly related to our acquisitions.

We expect to incur additional expenses related to the integration of certain of our acquisitions into our existing operations in 2016. These integration activities are expected to include the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, and moving expenses. Future expenses to complete these integration plans are expected to be less than $9.0 million.

During the year ended December 31, 2013, we incurred $2.1 million of restructuring expenses related to the integration of certain of our 2013 European acquisitions and $1.4 million of restructuring expenses related to the integration of certain of our 2012 North American acquisitions. Our integration activities included the closure of duplicate facilities, termination of employees in connection with the consolidation of overlapping facilities with our existing business, moving expenses, and other third party services directly related to the integration of these acquisitions.

European Restructuring Plan

In the third quarter of 2014, we initiated restructuring activities to eliminate overlapping positions within certain of our European operations. As a result of these restructuring activities, we incurred $1.6 million of expenses during the year ended December 31, 2014, primarily for severance costs to terminated employees.