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Summary of Significant Accounting Policies (Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Mar. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits	$ 2,481		$ 2,481	$ 30,198
Interest Expense in Tax Provision	500
Income Tax Examination, Penalties and Interest Accrued	600		600
Refund from Tax Settlement		$ 2,400
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority		17,600
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions		(25,700)	(27,717)
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	500	$ 5,800
Significant (Increase) Decrease in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	$ 2,000		$ 2,000

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The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

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