Income Taxes (Components of Income Taxes, Continuing and Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Income tax expense from continuing operations	$ 105,282	$ 144,534	$ 126,322
Income tax expense (benefit) from discontinued operations	2,215	(715)	19,379
Income tax expense from gain on disposal of discontinued operations	2,011	0	0
Total income tax expense	$ 109,508	$ 143,819	$ 145,701