Allowance for Doubtful Accounts

6 Months Ended

Jun. 30, 2020

Credit Loss [Abstract]

Allowance for Doubtful Accounts

Allowance for Doubtful Accounts

We estimate the lifetime allowance for doubtful, potentially uncollectible, accounts receivable upon their inception based on historical collection experience within the markets in which we operate, customer-specific information such as bankruptcy filings or customer liquidity problems, current conditions, and reasonable and supportable forecasts about the future.

Our allowance for doubtful accounts is presented as a reduction to accounts receivable on our consolidated balance sheet. When all internal efforts have been exhausted to collect the receivable, it is written off and relieved from the reserve.

The details of activity in allowance for doubtful accounts are as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Balance, beginning of period	$	7,292	$	7,451	$	7,384	$	6,960
Additions charged to expense	1,480		2,463		3,044		4,260
Write-offs charged against allowance	(238)		(816)		(795)		(1,542)
Recoveries of amounts previously written off	(995)		(519)		(2,094)		(1,099)
Balance, end of period	$	7,539	$	8,579	$	7,539	$	8,579