Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

The following is a summary of quarterly financial data:

(In thousands, except per share data)	2016
Three months ended	March 31		June 30		September 30		December 31
Revenues	$	1,807,211	$	1,855,914	$	2,019,727	$	1,971,333
Net income	119,511		108,967		220,650		152,790
Net income per share(1)
Basic	0.97		0.89		1.80		1.26
Diluted	0.93		0.85		1.72		1.20

	2015
Three months ended	March 31		June 30		September 30		December 31
Revenues	$	1,744,679	$	1,789,765	$	1,860,957	$	1,811,056
Net income	118,307		123,035		152,607		109,745
Net income per share(1)
Basic	0.94		0.99		1.24		0.89
Diluted	0.89		0.95		1.18		0.85

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(1) Net income per share (“EPS”) in each quarter is computed using the weighted-average number of shares outstanding during that quarter, while EPS for the full year is computed using the weighted-average number of shares outstanding during the year. Thus, the sum of the four quarters EPS does not necessarily equal the full-year EPS.