Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Summary of changes in the allowance for doubtful accounts and sales allowances

The following table summarizes the changes in the allowance for doubtful accounts and sales allowances (in thousands):

	Three Months Ended September 30, 2020		Nine Months Ended September 30, 2020
Allowances, at beginning of period	$	10,304	$	6,591
Charged as a reduction of revenue	1,581		6,939
(Reduction of) charged to bad debt expense in general and administrative expenses	(680)		2,805
Write-offs, net of recoveries	(2,752)		(7,882)
Allowances, at end of period	$	8,453	$	8,453