Stock Repurchases (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Oct. 19, 2021	Oct. 31, 2020
Subsequent Event [Line Items]
Number of shares authorized to be repurchased (in shares)						500,000
Remaining number of shares authorized to be repurchased (in shares)	30,940		30,940
Treasury stock, shares repurchased (in shares)	314,672	0	434,938	128,779
Subsequent Event
Subsequent Event [Line Items]
Number of shares authorized to be repurchased (in shares)					750,000
Remaining number of shares authorized to be repurchased (in shares)					750,000