Summary of Significant Accounting Policies (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Accounting Policies [Abstract]
Health insurance maximum risk of loss liability per employee insurance plan (up to)			$ 600
Health insurance maximum aggregate amount of risk of loss liability for employee insurance plans (up to)			$ 200
Common stock equivalents (in shares)	(669)	(398)	(584)	(328)
Anti-dilutive common stock equivalents (in shares)		266		348