Summary of Significant Accounting Policies - Basic and Diluted Net Income Per Share Calculations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Basic net income per common share calculation:
Net income available to common shareholders	$ 120,146	$ 133,473
Denominator - Weighted average common shares outstanding (in shares)	76,278,453	75,921,282
Basic net income per common share (in dollars per share)	$ 1.58	$ 1.76
Diluted net income per common share calculation:
Numerator - Net income available to common shareholders	$ 120,146	$ 133,473
Dilutive shares contingently issuable (in shares)	151,000	121,000
Weighted Average Number of Shares Outstanding, Diluted	76,428,885	76,042,328
Diluted net income per common share (in dollars per share)	$ 1.57	$ 1.76