Hurricane Michael (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Loss contingency
Loss on disposal of assets			$ 38
Insurance proceeds		$ 1,243		$ 5,314
Loss from hurricane damage	$ 594	575	1,096	1,703
Proceeds from settlement received				13,378
Hurricane Michael.
Loss contingency
Proceeds from business interruption insurance	0	0	700	1,300
Insurance proceeds	0	1,200	0	5,300
Loss from hurricane damage	$ 600	$ 600	$ 1,100	$ 1,700