Equity Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	May 18, 2022	May 31, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Equity [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 1.50		$ 1.50	$ 0.82	$ 3.00	$ 1.64
Repurchases of common shares (in shares)			221,903		347,355
Weighted average price (in dollars per share)			$ 180.23		$ 201.49
Total cost of shares repurchased			$ 40,000	$ 7,500	$ 70,000	$ 12,499
Addition to the total number of shares authorized to be repurchased (in shares)		750,000
Shares available for repurchase (in shares)			932,094		932,094