Note 1 - Interim Financial Statements (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2017			2016			2017			2 01 6
Computation of Basic and Diluted Earnings Per Share:
Net income available to the Company's common shareholders	$	131,861		$	191,854		$	197,039		$	321,012
Earnings attributable to participating securities		(647	)		(1,067	)		(1,070	)		(1,701	)
Net income available to the Company’s common shareholders for basic earnings per share		131,214			190,787			195,969			319,311
Distributions on convertible units		259			28			29			47
Net income available to the Company’s common shareholders for diluted earnings per share	$	131,473		$	190,815		$	195,998		$	319,358
Weighted average common shares outstanding – basic		423,650			417,748			423,516			415,189
Effect of dilutive securities (a):
Equity awards		432			1,457			505			1,450
Assumed conversion of convertible units		862			97			63			93
Weighted average common shares outstanding – diluted		424,944			419,302			424,084			416,732
Net income available to the Company's common shareholders:
Basic earnings per share	$	0.31		$	0.46		$	0.46		$	0.77
Diluted earnings per share	$	0.31		$	0.46		$	0.46		$	0.77