Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Current Expense, Domestic	$ 116,802,000	$ 156,339,000	$ 60,420,000
Deferred Expense (Benefit), Domestic	47,370,000	11,448,000	37,176,000
Domestic, Total	164,172,000	167,787,000	97,596,000
Current Expense, Foreign	22,362,000	23,029,000	22,011,000
Deferred Expense (Benefit), Foreign	7,053,000	469,000	2,338,000
Foreign, Total	29,415,000	23,498,000	24,349,000
Current Expense, Total	139,164,000	179,368,000	82,431,000
Deferred Expense (Benefit), Total	54,423,000	11,917,000	39,514,000
Total expense	193,587,000	191,285,000	121,945,000
Income (Loss) from Continuing Operations before Income Taxes, Domestic	598,000,000	624,000,000	469,000,000
Income (Loss) from Continuing Operations before Income Taxes, Foreign	$ 101,000,000	$ 78,000,000	$ 49,000,000