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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
ARCHROCK, INC.
SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
(in thousands)

 
Balance at
 Beginning
 of Period
 
Charged to
 Costs and
 Expenses
 
Deductions(1)
 
Balance at
 End of
 Period
Allowance for doubtful accounts deducted from accounts receivable in the balance sheet
 

 
 

 
 

 
 

December 31, 2018
$
1,794

 
$
1,677

 
$
2,019

 
$
1,452

December 31, 2017
1,864

 
5,144

 
5,214

 
1,794

December 31, 2016
3,343

 
3,658

 
5,137

 
1,864

——————
(1) 
Uncollectible accounts written off.