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Route and Customer Acquisition Costs - Schedule of Customer Contract Acquired (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]    
Cost $ 28,223 $ 27,364
Accumulated amortization (12,668) (12,113)
Route and customer acquisition costs, net $ 15,555 $ 15,251