Allowance for Credit Losses (Tables)

9 Months Ended

Sep. 30, 2021

Credit Loss [Abstract]

Allowance for credit losses

Activity in the allowance for credit losses is summarized as follows (in thousands):

	Nine Months Ended September 30,
	2021		2020
Balance at December 31	$	1,065	$	464
Impact of ASU No. 2016-13 adoption	—		423
Opening balance at January 1	1,065		887
Charges to expense, net of recoveries	1,382		1,138
Uncollected balances written off	(66)		(818)
Balance at September 30	$	2,381	$	1,207