Stock Repurchase Program (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
	Nov. 09, 2019	Feb. 28, 2019	Dec. 31, 2020	Dec. 31, 2019	May 31, 2019	Feb. 13, 2019
February 2019 Plan
Class of Stock
Stock repurchased during period (in shares)		100,000
Stock repurchased during period, value		$ 1.6
Stock repurchased program authorized number of shares (in shares)						100,000
Repurchase May 2019 Plan
Class of Stock
Stock repurchased during period, value			$ 1.2	$ 7.2
Stock repurchased program authorized number of shares (in shares)					1,000,000
Stock repurchased during period (in shares)			168,602	436,369
Remaining number of shares authorized to be repurchased (in shares)			395,029
November 2019 Plan
Class of Stock
Stock repurchased during period (in shares)	200,000
Stock repurchased during period, value	$ 2.0