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Summary of Significant Accounting Policies and New Accounting Standards (Details 1) - USD ($)
$ in Thousands
Sep. 30, 2018
Jul. 01, 2018
Jun. 30, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Other current assets $ 23,324   $ 22,381
Other assets 48,660   46,784
Accrued expenses and other current liabilities 54,281   71,144
Other liabilities 45,937   43,702
Retained earnings 145,082   $ 131,560
Effect of adoption      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Other current assets 56    
Other assets 56    
Accrued expenses and other current liabilities (80)    
Other liabilities 26    
Retained earnings $ 166    
Effect of adoption | ASU 2014-09, Revenue from Contracts with Customers (Topic 606)      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Other current assets   $ 2,100  
Other assets   2,325  
Accrued expenses and other current liabilities   343  
Other liabilities   2,837  
Retained earnings   1,245  
Post-adoption | ASU 2014-09, Revenue from Contracts with Customers (Topic 606)      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Other current assets   24,481  
Other assets   49,109  
Accrued expenses and other current liabilities   71,487  
Other liabilities   46,539  
Retained earnings   $ 132,805