Per Share Information (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Share Attributable to Common Stock

The amounts used to compute basic and diluted earnings per share attributable to common stock consisted of the following (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2021		2020		2021		2020
Amounts attributable to common stock:
Net income attributable to common stock	$	117,033	$	73,946	$	206,794	$	112,632
Weighted average shares outstanding:
Weighted average shares outstanding for basic earnings per share attributable to common stock	140,276		139,856		140,199		142,154
Effect of dilutive unvested non-participating stock-based awards	4,331		3,665		4,324		3,059
Weighted average shares outstanding for diluted earnings per share attributable to common stock	144,607		143,521		144,523		145,213