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Goodwill and Intangibles (Details Textuals)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2016
USD ($)
Jun. 30, 2017
USD ($)
Sep. 30, 2017
USD ($)
Goodwill [Line Items]      
Number of Reporting Units   6  
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount   20.00%  
Goodwill and Intangibles (Textuals) [Abstract]      
Amortization expense for the remainder of 2018     $ 17,100
Amortization expense for 2019     21,000
Amortization expense for 2020     19,200
Amortization expense for 2021     17,600
Amortization expense for 2022     16,100
Amortization expense for 2023     14,600
Service Center Based Distribution Segment [Member]      
Goodwill [Line Items]      
Goodwill, Purchase Accounting Adjustments   $ 3,220  
Accumulated goodwill impairment losses     64,794
Fluid Power Businesses Segment [Member]      
Goodwill [Line Items]      
Accumulated goodwill impairment losses     $ 36,605
Measurement period adjustment impact [Domain]      
Goodwill [Line Items]      
Amortization $ 156    
Customer Relationships [Member]      
Goodwill [Line Items]      
Finite-Lived Intangible Assets, Purchase Accounting Adjustments   2,636  
Trade Names [Member]      
Goodwill [Line Items]      
Finite-Lived Intangible Assets, Purchase Accounting Adjustments   $ 584