EARNINGS PER SHARE (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share, Basic and Diluted [Abstract]

Schedule of Basic and Diluted Earnings Per Common Share

A reconciliation of both calculations for the three months ended March 31, 2016 and 2015 is presented in the following table:

	Three months ended
	March 31,
(in thousands, except share, per share data and percentages)	2016			2015
Numerator:
Net income	$	64,237		$	67,132
Less: dividends declared and paid — common and restricted shares	(28,585		)	(25,220		)
Undistributed earnings	35,652			41,912
Percentage allocated to common shares (a)	99.4		%	99.2		%
Undistributed earnings — common shares	35,438			41,577
Add: dividends declared and paid — common shares	28,403			25,024
Numerator for basic and diluted earnings per common share	$	63,841		$	66,601
Denominator:
Basic earnings per common share — weighted average common shares outstanding	151,460,490			153,970,515
Incremental shares for stock options, employee stock purchase plan shares and performance shares — weighted average assumed conversion	1,012,299			1,444,202
Diluted earnings per common share — adjusted weighted average shares and assumed conversion	152,472,789			155,414,717
Per common share net income:
Basic	$	0.42		$	0.43
Diluted	$	0.42		$	0.43

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(a)	Weighted average common shares outstanding	151,460,490		153,970,515
	Weighted average restricted shares (participating securities)	982,640		1,209,468
	Total	152,443,130		155,179,983
	Percentage allocated to common shares	99.4	%	99.2	%

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The outstanding stock options, ESPP shares and performance shares and the anti-dilutive stock options and ESPP shares excluded from the diluted EPS calculations were as follows:

	2016	2015
Outstanding stock options, ESPP shares and performance shares (as of March 31)	4,004,003	4,553,938
Anti-dilutive stock options and ESPP shares (for the three months ended March 31)	524,834	542,312