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Valuation And Qualifying Accounts
12 Months Ended
Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Valuation And Qualifying Accounts
 
 
 
Additions (Reductions)
 
 
 
 
Description
Balance at
Beginning of
Period
 
Charged to
Costs
and Expenses
 
Charged to
Other
Accounts
 
Deductions
(1)
 
Balance at
End
of Period
 
(in thousands)
Year ended
 
 
 
 
 
 
 
 
 
December 31, 2019
 
 
 
 
 
 
 
 
 
Deducted from asset account:
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
2,270

 
$
1,777

 
$
(198
)
 
$
(763
)
 
$
3,086

Year ended
 
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
 
Deducted from asset account:
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
2,865

 
$
(262
)
 
$
(95
)
 
$
(238
)
 
$
2,270

Year ended
 
 
 
 
 
 
 
 
 
December 31, 2017
 
 
 
 
 
 
 
 
 
Deducted from asset account:
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
3,298

 
$
(120
)
 
$
223

 
$
(536
)
 
$
2,865

 
(1)
Uncollectible accounts written off, net of recoveries.