Subsequent Events	9 Months Ended
Sep. 30, 2015
Subsequent Events [Abstract]
Subsequent Events	13. Subsequent Events We have been in the process of upgrading our ERP systems due to the discontinued third party support of certain of our aged legacy systems, our changing IT needs when considering the transitioning state of our business from our origins towards becoming a leading IT solution provider and the ongoing desire to integrate multiple systems upon which we currently operate as a result of multiple acquisitions. In this regard, we previously purchased licenses for Microsoft Dynamics AX and other related modules to provide a complete, robust and integrated ERP solution and have expended time, effort and resources to implement this AX solution for our legacy businesses. We believe the implementation and upgrade of our systems should help us to gain further efficiencies across our organizations. Our newly acquired En Pointe business has operated for a number of years on an implemented and successfully functioning SAP system. As a result of the En Pointe acquisition, we considered new issues related to the costs, risks and benefits of either continuing the implementation of our AX solution and moving En Pointe to such AX solution or moving the legacy businesses to the SAP solution. In response, we shifted certain of our IT development efforts towards assessing these respective costs, risks and benefits. There are significant risks and uncertainties in adopting and implementing a new ERP system and as part of our assessment of these alternatives, we considered the fact that En Pointe has been successfully functioning on its SAP system for many years while none of our businesses have operated on the AX system. While we believe the AX solution has many valuable features and that it has been essential that we have undertaken our AX development efforts to date, we have weighed these attributes and the transition risk inherent with any such new solution against the fact that En Pointe, with similar business characteristics and system needs to our legacy businesses, has been successfully operating on its SAP system for a number of years. As a result of the assessments performed through late October 2015, management determined the SAP solution to be the most viable and cost effective option for our consolidated business going forward. To that end, in late October 2015, our management determined, and our Board of Directors approved such determination, to adopt the SAP platform across all of our business units and further approved the non-cash write-off of $21.5 million of work in process software previously capitalized for all major phases of the design, configuration and customization of the AX solution to date. This charge will be recognized in the fourth quarter of 2015. We expect the rollout of SAP to additional major divisions to occur beginning in the second quarter of 2016. On October 26, 2015, PCM Sales Canada, Inc., a wholly-owned subsidiary of PCM, Inc., completed the acquisition of all the outstanding common stock of Acrodex, Inc. (“Acrodex”) for a total purchase price of approximately C$16.5 million. Acrodex, headquartered in Edmonton, Alberta (Canada), provides full end-to-end infrastructure solutions from initial plan and design, through procurement and installation, to full support and on-going management. Acrodex’s core business areas include software value-added reseller services, software asset management and hardware sales and services, including client device products, servers, storage, networks, printers and a full complement of accessories and devices. Services are a significant component to Acrodex’s product mix and include managed services, cloud-based services, consulting, IT management and other IT service areas. Acrodex had revenues of C$147 million for its fiscal year ended September 30, 2015. Due to the recent timing of the Acrodex acquisition, preliminary purchase price allocation information is not available.

Subsequent Events

9 Months Ended

Sep. 30, 2015

13. Subsequent Events

We have been in the process of upgrading our ERP systems due to the discontinued third party support of certain of our aged legacy systems, our changing IT needs when considering the transitioning state of our business from our origins towards becoming a leading IT solution provider and the ongoing desire to integrate multiple systems upon which we currently operate as a result of multiple acquisitions. In this regard, we previously purchased licenses for Microsoft Dynamics AX and other related modules to provide a complete, robust and integrated ERP solution and have expended time, effort and resources to implement this AX solution for our legacy businesses. We believe the implementation and upgrade of our systems should help us to gain further efficiencies across our organizations. Our newly acquired En Pointe business has operated for a number of years on an implemented and successfully functioning SAP system. As a result of the En Pointe acquisition, we considered new issues related to the costs, risks and benefits of either continuing the implementation of our AX solution and moving En Pointe to such AX solution or moving the legacy businesses to the SAP solution. In response, we shifted certain of our IT development efforts towards assessing these respective costs, risks and benefits. There are significant risks and uncertainties in adopting and implementing a new ERP system and as part of our assessment of these alternatives, we considered the fact that En Pointe has been successfully functioning on its SAP system for many years while none of our businesses have operated on the AX system. While we believe the AX solution has many valuable features and that it has been essential that we have undertaken our AX development efforts to date, we have weighed these attributes and the transition risk inherent with any such new solution against the fact that En Pointe, with similar business characteristics and system needs to our legacy businesses, has been successfully operating on its SAP system for a number of years. As a result of the assessments performed through late October 2015, management determined the SAP solution to be the most viable and cost effective option for our consolidated business going forward. To that end, in late October 2015, our management determined, and our Board of Directors approved such determination, to adopt the SAP platform across all of our business units and further approved the non-cash write-off of $21.5 million of work in process software previously capitalized for all major phases of the design, configuration and customization of the AX solution to date. This charge will be recognized in the fourth quarter of 2015. We expect the rollout of SAP to additional major divisions to occur beginning in the second quarter of 2016.

On October 26, 2015, PCM Sales Canada, Inc., a wholly-owned subsidiary of PCM, Inc., completed the acquisition of all the outstanding common stock of Acrodex, Inc. (“Acrodex”) for a total purchase price of approximately C$16.5 million. Acrodex, headquartered in Edmonton, Alberta (Canada), provides full end-to-end infrastructure solutions from initial plan and design, through procurement and installation, to full support and on-going management. Acrodex’s core business areas include software value-added reseller services, software asset management and hardware sales and services, including client device products, servers, storage, networks, printers and a full complement of accessories and devices. Services are a significant component to Acrodex’s product mix and include managed services, cloud-based services, consulting, IT management and other IT service areas. Acrodex had revenues of C$147 million for its fiscal year ended September 30, 2015. Due to the recent timing of the Acrodex acquisition, preliminary purchase price allocation information is not available.