Summary of Company Information (Details)	Jun. 30, 2014 facility center location
Summary of Company Information [Line Items]
Number of customer locations, over 31,000	31,000
Number of distribution centers	28
Number of distribution facilities operated as a third party logistics provider	2
United States
Summary of Company Information [Line Items]
Number of distribution centers	24
Canada
Summary of Company Information [Line Items]
Number of distribution centers	4