Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Narrative (Details)

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Acquisitions - Narrative (Details) - USD ($)
$ in Thousands
Apr. 02, 2018
Mar. 12, 2018
Apr. 28, 2017
Jul. 31, 2015
Jun. 30, 2018
General Pet Supply          
Business Acquisition [Line Items]          
Business combination, purchase price $ 24,500        
Purchase price exceeded the estimated fair value of assets acquired         $ 14,100
Bell Nursery Holdings, LLC          
Business Acquisition [Line Items]          
Business combination, purchase price   $ 61,000      
Contingent consideration   10,000      
Purchase price exceeded the estimated fair value of assets acquired   $ 11,600      
K&H Manufacturing          
Business Acquisition [Line Items]          
Business combination, purchase price     $ 48,000    
Purchase price exceeded the estimated fair value of assets acquired     41,800    
Other intangible assets     29,200 $ 29,200  
Goodwill     $ 12,000 $ 11,968