Allowance for Doubtful Accounts

12 Months Ended

Dec. 31, 2020

Receivables [Abstract]

Allowance for Doubtful Accounts

Allowance for Doubtful Accounts

The Company estimates expected credit losses using a number of factors, including customer credit ratings, age of receivables, historical credit loss information and current and forecasted economic conditions (including the impact of the COVID-19 pandemic) which could affect the collectability of the reported amounts. All of these factors have been considered in the estimate of expected credit losses as of December 31, 2020.

The activity related to the allowance for doubtful accounts was as follows:

	Year ended December 31,
(in thousands)	2020		2019		2018
Balance at beginning of year	$	5,338	$	7,272	$	9,975
Bad debt expense	2,556		573		(583)
Amount of receivables written off	(572)		(2,706)		(1,873)
Foreign currency translation and other	376		199		(247)
Balance at end of year	$	7,698	$	5,338	$	7,272