Schedule II - Valuation And Qualifying Accounts

12 Months Ended

Dec. 31, 2019

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation And Qualifying Accounts

Schedule II – Valuation and Qualifying Accounts

	Balance at January 1		Increase		Decrease		Balance at December 31
Allowance for doubtful accounts
2019	$	1,048	$	1,526	$	1,055	$	1,519
2018	$	1,088	$	658		698	$	1,048
2017	$	828	$	320		60	$	1,088
Tax valuation allowance
2019	$	6,720	$	27,226		—	$	33,946
2018	$	6,870	$	—		150	$	6,720
2017	$	10,593	$	—		3,723	$	6,870