Summary of Significant Accounting Policies - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Basic EPS, Income (Numerator)
Income available to common shareholders	$ 127,900	$ 98,811
Diluted EPS, Income (Numerator)
Income available to common shareholders	$ 127,900	$ 98,811
Basic EPS, Weighted Average Shares (Denominator)
Number of shares outstanding	45,684	45,530
Effect of Dilutive Securities, Shares (Denominator)
Stock options and restricted stock units	479	505
Diluted EPS, Weighted Average Shares (Denominator)
Number of shares outstanding	46,163	46,035
Basic EPS, Per Share Amount
Basic net earnings per share (in dollars per share)	$ 2.80	$ 2.17
Diluted EPS, Per Share Amount
Diluted earnings per share (in dollars per share)	$ 2.77	$ 2.15