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Subsequent Events Subsequent Events (Details) - USD ($)
$ in Thousands
3 Months Ended
Oct. 05, 2018
Oct. 01, 2018
Sep. 30, 2018
Sep. 30, 2017
Subsequent Event [Line Items]        
Payments to Acquire Businesses, Net of Cash Acquired     $ 0 $ 10,455
Business Acquisition [Member]        
Subsequent Event [Line Items]        
Business Acquisition, Percentage of Voting Interests Acquired 100.00% 100.00%    
Payments to Acquire Businesses, Net of Cash Acquired $ 15,000 $ 6,300