Share-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Nonvested Share Activity [Table Text Block]

The following represents a summary of the non-vested shares for the three years ended December 31, 2022 (in thousands):

	Restricted Stock			Restricted Stock Units
	Shares	Weighted Average Grant Date Fair Value		Units	Weighted Average Grant Date Fair Value
Non-vested at January 1, 2020	427,178			46,689
Granted	236,750	$	83.49	22,980	$	77.36
Vested	(225,527)	83.50		—	—
Forfeited	(18,167)	83.10		—	—
Non-vested at December 31, 2020	420,234			69,669
Granted	247,917	$	73.01	17,570	$	88.25
Vested	(166,965)	94.96		—	—
Forfeited	(11,632)	75.83		—	—
Non-vested at December 31, 2021	489,554			87,239
Granted	183,809	$	108.23	25,416	$	103.79
Vested	(139,859)	76.80		(61,645)	91.38
Forfeited	(40,620)	79.60		—
Non-vested at December 31, 2022	492,884			51,010