Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Sales Discounts and Returns Allowance

Activity in our sales discounts and returns allowance was as follows (in thousands):

	2020		2019		2018
Balance, January 1	$	4,385	$	4,419	$	6,920
Charges to reserve	22,009		18,311		15,058
Reductions for sales discounts and returns	(19,983)		(18,345)		(17,559)
Balance, December 31	$	6,411	$	4,385	$	4,419