Business Combinations (Details Textuals) (Fluid Power Resources LLC [Member], USD $) In Thousands, unless otherwise specified	Aug. 29, 2008
Fluid Power Resources LLC [Member]
Business Combinations (Textuals) [Abstract]
Aggregate cash purchase price for assets acquired and liabilities assumed	$ 166,000
No of business locations acquired	19

The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 141
-Paragraph 51
-Subparagraph d

Name:	us-gaap_BusinessAcquisitionCostOfAcquiredEntityPurchasePrice
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant