Stock-based Compensation Expense - Activity in Performance Unit Awards (Details) - Performance Unit Awards	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Shares
Nonvested, beginning of period (in shares) | shares	224,548
Granted (in shares) | shares	79,396
Vested (in shares) | shares	(73,060)
Forfeited (in shares) | shares	(7,028)
Nonvested, end of period (in shares) | shares	223,856
Weighted Average Grant Date Fair Value
Nonvested, beginning of period (in dollars per share) | $ / shares	$ 140.44
Granted (in dollars per share) | $ / shares	288.28
Vested (in dollars per share) | $ / shares	102.29
Forfeited (in dollars per share) | $ / shares	229.70
Nonvested, end of period (in dollars per share) | $ / shares	$ 207.61