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Inventories, net (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Component of inventory use in hospitality product [Abstract]    
Finished Goods $ 8,320 $ 12,472
Work in process 0 67
Component parts 6,768 4,716
Service parts 4,238 5,482
Inventories, net 19,326 22,737
Recorded inventory write-downs $ 9,600 $ 9,800