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Acquisitions (Details)
£ in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Dec. 01, 2017
GBP (£)
Dec. 01, 2017
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Business Acquisition [Line Items]          
Acquisition related costs     $ 215   $ 329
Cash paid, net of cash acquired       $ 0 $ 13,064
Clarks [Member]          
Business Acquisition [Line Items]          
Cash paid, net of cash acquired £ 9,179 $ 12,368      
Contingent consideration, high range | £ £ 1,500        
Contingent consideration arrangements, period for achievement operating results 18 months 18 months      
Clarks [Member] | Sales [Member]          
Business Acquisition [Line Items]          
Concentration risk, percentage, less than 1.00% 1.00%