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Schedule II - Valuation And Qualifying Accounts (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Allowances for doubtful accounts      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of Year $ 1,288 $ 2,023 $ 1,342
Additions Charged to Expense 1,050 414 2,470
Additions Charged to Other Accounts 45 39 49
Write Offs (1,182) (1,170) (1,529)
Other [1] (1) (18) (309)
Balance at end of Year 1,200 1,288 2,023
Deferred tax valuation allowance      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at beginning of Year 3,356 4,010 3,998
Additions Charged to Expense 884 1,230 1,385
Write Offs   (1,851) (1,595)
Other [1] 36 (33) 222
Balance at end of Year $ 4,276 $ 3,356 $ 4,010
[1]

 

(1)

“Other” primarily includes foreign exchange translation adjustments.