Acquisitions (Details)	Jun. 30, 2013
B. Shapiro Supply, LLC [Member]
Business Acquisition [Line Items]
Number of sales centers	1
SPSC, Inc. [Member]
Business Acquisition [Line Items]
Number of sales centers	1
Ideal Distributors Ltd. [Member]
Business Acquisition [Line Items]
Number of sales centers	4
CCR Distribution [Member]
Business Acquisition [Line Items]
Number of sales centers	1