Quarterly Financial Information (Tables)

12 Months Ended

Dec. 31, 2013

Selected Quarterly Financial Information [Abstract]

Schedule Of Quarterly Financial Information

	Quarter
(In thousands, except per share data)	First		Second		Third		Fourth		Total
2013
Revenue (1)	$	538,416	$	590,304	$	616,458	$	592,470	$	2,337,648
Operating income	65,944		97,573		98,076		76,845		338,438
Net income	40,553		58,255		60,149		47,156		206,113
Net income per share:
Basic and diluted	0.47		0.68		0.70		0.55		2.39
2012
Revenue (1)	$	502,819	$	547,452	$	550,511	$	533,797	$	2,134,579
Operating income	54,218		82,588		80,932		67,516		285,254
Net income	31,095		47,832		51,044		39,481		169,452
Net income per share:
Basic and diluted	0.36		0.56		0.59		0.46		1.97