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Income Taxes (Tables) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Expense (Benefit), Continuing Operations [Abstract]      
Income From Continuing Operations Before Income Taxes
Income before income taxes is categorized geographically as follows:
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
(In thousands)
United States
$
248,932

 
$
270,373

 
$
250,041

Foreign
238,718

 
212,938

 
206,730

Total income before income taxes
$
487,650

 
$
483,311

 
$
456,771

   
Components Of Provision For Income Taxes
The provision for income taxes consisted of the following:
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
(In thousands)
Current (expense) benefit:
 
 
 
 
 
Federal
$
(13,601
)
 
$
(4,643
)
 
$
(1,104
)
State
(156
)
 
14

 
(8,150
)
Foreign, including withholding tax
(17,241
)
 
(69,614
)
 
(13,613
)
 
(30,998
)
 
(74,243
)
 
(22,867
)
Deferred (expense) benefit:
 
 
 
 
 
Federal
(65,168
)
 
(76,614
)
 
53,629

State
(15,767
)
 
(15,402
)
 
66,701

Foreign
(481
)
 
38,208

 
(9,784
)
 
(81,416
)
 
(53,808
)
 
110,546

Total income tax (expense) benefit
$
(112,414
)
 
$
(128,051
)
 
$
87,679

   
Reconciliation Of Income Tax At Effective Income Tax Rate
The difference between income tax (expense) benefit and the amount resulting from applying the federal statutory rate of 35% to Income before income taxes is attributable to the following:
 
Year Ended December 31,
 
2015
 
2014
 
2013
 
(In thousands)
Income tax expense at federal statutory rate
$
(170,677
)
 
$
(169,159
)
 
$
(159,870
)
State taxes, net of federal benefit
(9,616
)
 
(11,308
)
 
(13,821
)
Differences between statutory rate and foreign effective tax rate
66,238

 
57,876

 
51,016

Reorganization of certain non-U.S. operations

 
(14,474
)
 

Tax (expense) benefit from worthless stock deduction

 
(14,497
)
 
1,717,466

Change in valuation allowance
(434
)
 
41,700

 
(1,195,303
)
Repatriation of foreign earnings

 
4,164

 
(167,115
)
Accrual for uncertain tax positions
(706
)
 
(22,719
)
 
(140,596
)
Other
2,781

 
366

 
(4,098
)
Total income tax (expense) benefit
$
(112,414
)
 
$
(128,051
)
 
$
87,679

   
Summary Of Deferred Tax Assets And Liabilities
The tax effects of temporary differences that give rise to significant portions of the Company’s deferred tax assets and liabilities are as follows:
 
As of December 31,
 
2015
 
2014
 
(In thousands)
Deferred tax assets:
 
 
 
Net operating loss carryforwards
$
56,108

 
$
61,059

Deductible goodwill and intangible assets
21,044

 
34,586

Tax credit carryforwards
86,951

 
100,190

Deferred revenue, accruals and reserves
106,572

 
103,794

Capital loss carryforwards and book impairment of investments
1,162,320

 
1,161,896

Other
5,039

 
4,956

Total deferred tax assets
1,438,034

 
1,466,481

Valuation allowance
(1,162,604
)
 
(1,162,170
)
Net deferred tax assets
275,430

 
304,311

Deferred tax liabilities:
 
 
 
Property and equipment
(10,787
)
 
(16,115
)
Subordinated Convertible debentures
(538,098
)
 
(494,625
)
Other
(3,378
)
 
(4,151
)
Total deferred tax liabilities
(552,263
)
 
(514,891
)
Total net deferred tax liabilities
$
(276,833
)
 
$
(210,580
)
   
Reconciliation Of Gross Unrecognized Tax Benefits
A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits is as follows:
 
As of December 31,
 
2015
 
2014
 
(In thousands)
Gross unrecognized tax benefits at January 1
$
219,908

 
$
197,189

Increases in tax positions for prior years

 
22,538

Increases in tax positions for current year
372

 
181

Gross unrecognized tax benefits at December 31
$
220,280

 
$
219,908

   
contingent interest payment for debenture $ (10,759) $ 0 $ 0