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Schedule II -- Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule II -- Valuation and Qualifying Accounts
BioScrip, Inc. and Subsidiaries
Schedule II-- Valuation and Qualifying Accounts
(in thousands)

 
Balance at
Beginning of
Period
 
Write-Off
of
Receivables
 
Charged to
Costs
and Expenses
 
Balance at
End of Period
Year ended December 31, 2016
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
59,689

 
$
(41,567
)
 
$
26,608

 
$
44,730

Year ended December 31, 2017
 

 
 

 
 

 
 

Allowance for doubtful accounts
$
44,730

 
$
(30,515
)
 
$
23,697

 
$
37,912

Year ended December 31, 2018
 

 
 

 
 

 
 

Allowance for doubtful accounts (1)
$
—

 
$
—

 
$
—

 
$
—


(1) Subsequent to adoption of ASC 606, an allowance for doubtful accounts is established only as a result of an adverse change in the Company’s payors’ ability to pay outstanding billings.