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Business Description and Significant Accounting Policies (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 01, 2019
segment
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
lease
segment
Sep. 30, 2019
USD ($)
Accounting Policies [Abstract]          
Number of operating segments | segment 1     2  
Property, Plant and Equipment [Line Items]          
Impairment charges - property and equipment | $   $ 117 $ 20 $ 126 $ 20
Number of leases exited       4  
New York          
Property, Plant and Equipment [Line Items]          
Number of leases exited       1  
Minimum          
Property, Plant and Equipment [Line Items]          
Estimated useful lives       three  
Maximum          
Property, Plant and Equipment [Line Items]          
Estimated useful lives       ten years