Basis of Presentation and Description of Company	6 Months Ended
Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Description of Company	1. Basis of Presentation and Description of Company PCM, Inc. is a leading multi-vendor provider of technology products, services and solutions offered through our dedicated sales force and field service teams and direct marketing channels. Since our founding in 1987, we have served our customers by offering products and services from vendors such as Apple, Cisco, Dell, HP, Ingram Micro, Lenovo, Microsoft and Tech Data. We add additional value by incorporating products and services into comprehensive solutions. Our sales and marketing efforts allow our vendor partners to reach multiple customer segments including small, medium and enterprise businesses, state, local and federal governments, educational institutions and individual consumers. We have prepared the unaudited condensed consolidated financial statements included herein pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and in conformity with accounting principles generally accepted in the United States of America, or GAAP, which requires us to make estimates and assumptions that affect amounts reported herein. We base our estimates and assumptions on historical experience and on various other factors that we believe to be reasonable under the circumstances. Due to the inherent uncertainty involved in making estimates, our actual results reported in future periods may be affected by changes in those estimates. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations for interim financial reporting. In the opinion of management, all adjustments, consisting only of normal recurring items which are necessary for a fair presentation, have been included. The results for interim periods are not necessarily indicative of the results that may be expected for any other interim period or for the full year. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2014 and all of our other periodic filings, including Current Reports on Form 8-K, filed with the SEC after the end of our 2014 fiscal year and through the date of this report. We operate under three reportable operating segments - Commercial, Public Sector and MacMall. Our segments are primarily aligned based upon their respective customer base. We include corporate related expenses such as legal, accounting, information technology, product management and other administrative costs that are not otherwise included in our reportable operating segments in Corporate& Other. In April 2015, we completed the acquisition of certain assets of En Pointe Technologies Sales, Inc. (“En Pointe”), one of the nation’s largest independent IT solutions providers, headquartered in Southern California. The operating results of En Pointe from the date of acquisition have been included in our Commercial and Public Sector segments. See Note 3 below for more information regarding the En Pointe acquisition. During 2014, we discontinued the operation of all four of our retail stores, located in Huntington Beach, Santa Monica and Torrance, California and Chicago, Illinois, and our OnSale and eCost businesses. We reflected the results of these operations, which were historically reported as a part of our MacMall segment, as discontinued operations for all periods presented herein in our Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Operations. We sell primarily to customers in the United States, and maintain offices throughout the United States, as well as in Montreal, Canada and Manila, Philippines. In the three months ended June 30, 2015, we generated approximately 73% of our revenue in our Commercial segment, 22% of our revenue in our Public Sector segment and 5% of our revenue in our MacMall segment. In the six months ended June 30, 2015, we generated approximately 76% of our revenue in our Commercial segment, 18% of our revenue in our Public Sector segment and 6% of our revenue in our MacMall segment. Our Commercial segment sells complex products, services and solutions to commercial businesses in the United States, using multiple sales channels, including a field relationship-based selling model, an outbound phone based sales force, a field services organization and an online extranet. Our Public Sector segment consists of sales made primarily to federal, state and local governments, as well as educational institutions. The Public Sector segment utilizes an outbound phone and field relationship-based selling model, as well as contract and bid business development teams and an online extranet. Our MacMall segment consists of sales made via telephone and the Internet to consumers, small businesses and creative professionals.

Basis of Presentation and Description of Company

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation and Description of Company

1. Basis of Presentation and Description of Company

PCM, Inc. is a leading multi-vendor provider of technology products, services and solutions offered through our dedicated sales force and field service teams and direct marketing channels. Since our founding in 1987, we have served our customers by offering products and services from vendors such as Apple, Cisco, Dell, HP, Ingram Micro, Lenovo, Microsoft and Tech Data. We add additional value by incorporating products and services into comprehensive solutions. Our sales and marketing efforts allow our vendor partners to reach multiple customer segments including small, medium and enterprise businesses, state, local and federal governments, educational institutions and individual consumers.

We have prepared the unaudited condensed consolidated financial statements included herein pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and in conformity with accounting principles generally accepted in the United States of America, or GAAP, which requires us to make estimates and assumptions that affect amounts reported herein. We base our estimates and assumptions on historical experience and on various other factors that we believe to be reasonable under the circumstances. Due to the inherent uncertainty involved in making estimates, our actual results reported in future periods may be affected by changes in those estimates. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations for interim financial reporting. In the opinion of management, all adjustments, consisting only of normal recurring items which are necessary for a fair presentation, have been included. The results for interim periods are not necessarily indicative of the results that may be expected for any other interim period or for the full year. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2014 and all of our other periodic filings, including Current Reports on Form 8-K, filed with the SEC after the end of our 2014 fiscal year and through the date of this report.

We operate under three reportable operating segments - Commercial, Public Sector and MacMall. Our segments are primarily aligned based upon their respective customer base. We include corporate related expenses such as legal, accounting, information technology, product management and other administrative costs that are not otherwise included in our reportable operating segments in Corporate& Other.

In April 2015, we completed the acquisition of certain assets of En Pointe Technologies Sales, Inc. (“En Pointe”), one of the nation’s largest independent IT solutions providers, headquartered in Southern California. The operating results of En Pointe from the date of acquisition have been included in our Commercial and Public Sector segments. See Note 3 below for more information regarding the En Pointe acquisition.

During 2014, we discontinued the operation of all four of our retail stores, located in Huntington Beach, Santa Monica and Torrance, California and Chicago, Illinois, and our OnSale and eCost businesses. We reflected the results of these operations, which were historically reported as a part of our MacMall segment, as discontinued operations for all periods presented herein in our Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Operations.

We sell primarily to customers in the United States, and maintain offices throughout the United States, as well as in Montreal, Canada and Manila, Philippines. In the three months ended June 30, 2015, we generated approximately 73% of our revenue in our Commercial segment, 22% of our revenue in our Public Sector segment and 5% of our revenue in our MacMall segment. In the six months ended June 30, 2015, we generated approximately 76% of our revenue in our Commercial segment, 18% of our revenue in our Public Sector segment and 6% of our revenue in our MacMall segment.

Our Commercial segment sells complex products, services and solutions to commercial businesses in the United States, using multiple sales channels, including a field relationship-based selling model, an outbound phone based sales force, a field services organization and an online extranet.

Our Public Sector segment consists of sales made primarily to federal, state and local governments, as well as educational institutions. The Public Sector segment utilizes an outbound phone and field relationship-based selling model, as well as contract and bid business development teams and an online extranet.

Our MacMall segment consists of sales made via telephone and the Internet to consumers, small businesses and creative professionals.