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Income Taxes (Schedule Of Income Tax Expense (Benefit) Computed By Applying The U.S. Federal Income Tax Rate) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Tax Disclosure [Abstract] |  |  |
Tax at statutory U.S. federal rate | $ 189,590 | $ 1,201 | $ (40,747)
Impact of U.S. Tax Cut and Jobs Act - GILTI | 93,739 | 0 | 0
Impact of the 2017 Tax Act - transition tax | 0 | 39,628 | 0
Impact of the 2017 Tax Act - tax rate change | 0 | 52,228 | 0
Impact of Tax Receivable Agreement | 18,160 | 0 | 0
Valuation allowance, net | (93,125) | (89,269) | 35,091
State taxes, net of federal tax benefit | 1,529 | 3,437 | (2,324)
U.S. tax impact of foreign earnings (net of foreign tax credits) | 792 | 1,151 | 51
Establishment/resolution of uncertain tax positions | (345) | (840) | (513)
Adjustment for foreign income taxed at different rates | (95,822) | (2,359) | 12,738
Foreign tax credits | (65,046) | (17,956) | (175)
Investment in subsidiary impairment deduction | 0 | 0 | (10,114)
Other | (552) | 1,998 | (1,559)
Provision (benefit) for income taxes | $ 48,920 | $ (10,781) | $ (7,552)

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
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