Income Taxes (Unrecognized Tax Benefits) (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2009
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 600,000	$ 800,000	$ 1,200,000
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits - Opening Balance		52,654,000		22,590,000
Gross increases - tax positions in prior period	33,787,000	0	19,000
Gross decreases - tax positions in prior period	(21,000)	0	8,899,000
Gross increases - current-period tax positions	0	2,671,000	5,727,000
Settlements with taxing authorities	(163,000)	0	0
Expiration of the statute of limitations for the assessment of taxes	(251,000)	0	135,000
Unrecognized Tax Benefits - Ending Balance	$ 52,654,000	$ 55,325,000	$ 19,302,000	$ 22,590,000