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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Calculation of Basic and Diluted Earnings Per Share

The calculation of basic and diluted EPS follows.

		Three months ended September 30,								Nine months ended September 30,
		2016				2015				2016				2015
		(In thousands, except per-share amounts)
Basic EPS
Numerator:
Net income		$	58,037			$	49,350			$	162,540			$	141,924
Income attributable to unvested participating securities			(494	)			(379	)			(1,353	)			(1,196	)
Net income used in calculating basic EPS		$	57,543			$	48,971			$	161,187			$	140,728
Denominator:
Weighted-average vested shares			47,008				50,082				47,736				51,494
Basic EPS		$	1.22			$	0.98			$	3.38			$	2.73
Diluted EPS
Numerator:
Net income		$	58,037			$	49,350			$	162,540			$	141,924
Income attributable to unvested participating securities			(493	)			(379	)			(1,352	)			(1,196	)
Net income used in calculating diluted EPS		$	57,544			$	48,971			$	161,188			$	140,728
Denominator:
Weighted-average vested shares			47,008				50,082				47,736				51,494
Dilutive effect of incremental shares to be issued for contingently issuable shares			43				22				39				32
Weighted-average shares used in calculating diluted EPS			47,051				50,104				47,775				51,526
Diluted EPS		$	1.22			$	0.98			$	3.37			$	2.73