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Per Share Information - Basic and Diluted Earnings Per Share Attributable to Common Stock (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Amounts attributable to common stock:    
Net income attributable to common stock, basic $ 84,641 $ 89,761
Net income attributable to common stock, diluted $ 84,641 $ 89,761
Weighted average shares:    
Weighted average shares outstanding for basic earnings per share attributable to common stock (in shares) 143,541,000 140,121,000
Effect of dilutive unvested non-participating stock-based awards (in shares) 4,541,000 4,326,000
Weighted average shares outstanding for diluted earnings per share attributable to common stock (in shares) 148,082,000 144,447,000