Income Taxes (Federal Tax Rate Reconciliation) (Details)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
State income taxes, net	(2.80%)	2.90%	(50.00%)
Foreign tax rate differential	(10.00%)	(3.30%)	43.20%
Permanent differences	(8.90%)	6.90%	(88.60%)
Valuation allowance	(48.60%)	(13.00%)	(243.20%)
Benefit from intraperiod tax allocation under ASC 740	73.50%	0.00%	265.90%
Net change in unrecognized tax benefits	0.50%	(10.20%)	(11.40%)
Benefit from settlement of litigation & audits	0.00%	0.00%	54.50%
Other, net (primarily prior year return to provision)	1.60%	(5.70%)	110.50%
Effective tax rate	40.30%	12.60%	115.90%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319

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-Publisher FASB
-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 changes in the valuation allowance for deferred tax assets.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Percentage 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 applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage 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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage 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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Effective Income Tax Rate Reconciliation, Benefit from intraperiod tax allocation under ASC 740

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Effective Income Tax Rate Reconciliation, Net Decrease In Unrecognized Tax Benefits

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Effective Income Tax Reconciliation, Permanent Differences, Debt Recapitalizaton

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