v3.3.1.900

Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Components of income (loss) before income taxes |  |  |
Domestic | $ 224,058 | $ 172,276 | $ (50,551)
Foreign | (2,486) | 6,057 | 16,515
Income (loss) before income taxes | 221,572 | 178,333 | (34,036)
Current benefit (provision): |  |  |
Federal | (165) | (2,593) | 1,118
State | (9,601) | 9,006 | 6,531
Foreign | (6,303) | (5,455) | (5,992)
Total current (provision) benefit | (16,069) | 958 | 1,657
Deferred benefit (provision): |  |  |
Federal | (62,572) | (31,905) | 26,511
State | 4,818 | (1,283) | 10,074
Foreign | 1,622 | 1,446 | (805)
Total deferred (provision) benefit | (56,132) | (31,742) | 35,780
Total income tax (provision) benefit, net | $ (72,201) | $ (30,784) | $ 37,437
Actual tax provision reconciliation to the amounts computed by applying statutory Federal tax rate to income (loss) before taxes |  |  |
Statutory rate (as a percent) | 35.00% | 35.00% | 35.00%
State income taxes, net of Federal benefit (as a percent) | 2.10% | (0.20%) | 21.00%
Permanent differences (as a percent) | 3.60% | 0.60% | (10.70%)
Tax credits (as a percent) | (10.10%) | (18.60%) | 48.70%
Valuation allowance (as a percent) | 2.80% | (0.90%) | 14.20%
Other (as a percent) | (0.80%) | 1.40% | 1.80%
Total effective tax rate (as a percent) | 32.60% | 17.30% | 110.00%
Deferred tax assets: |  |  |
Net operating losses, credit and other carryforwards | $ 315,924 | $ 412,744 |
Unrealized losses on investments, net | 47,678 | 30,248 |
Accrued expenses | 34,037 | 34,632 |
Stock-based compensation | 13,345 | 8,445 |
Other asset | 9,534 | 12,157 |
Total deferred tax assets | 420,518 | 498,226 |
Valuation allowance | (72,131) | (73,664) |
Deferred tax assets after valuation allowance | 348,387 | 424,562 |
Deferred tax liabilities: |  |  |
Depreciation and amortization | (993,326) | (1,014,812) |
Other liabilities | (1,412) | (748) |
Total deferred tax liabilities | (994,738) | (1,015,560) |
Total net deferred tax liabilities | (646,351) | (590,998) |
Deferred Taxes by classification |  |  |
Current portion of net deferred tax assets |  | 87,208 |
Noncurrent portion of net deferred tax liabilities | (646,351) | (678,206) |
Total net deferred tax liabilities | (646,351) | (590,998) |
Net operating loss carryforwards | 768,800 |  |
Net operating loss carryforwards attributable to stock-based compensation | 38,400 |  |
Provision for income and withholding taxes on undistributed earnings attributable to foreign subsidiaries | 0 |  |
Reconciliation of the beginning and ending amount of unrecognized tax benefits |  |  |
Balance as of beginning of period | 44,839 | 43,319 | $ 34,677
Additions based on tax positions related to the current year | 11,748 | 3,806 | 81
Additions based on tax positions related to prior years | 5,779 | 4,643 | 9,929
Reductions based on tax positions related to prior years |  | (81) | (1,253)
Reductions based on tax settlements |  | (6,848) | (115)
Balance as of end of period | 62,366 | 44,839 | $ 43,319
Unrecognized tax benefits if recognized, could affect our effective tax rate | 62,400 | $ 44,800 |
Federal |  |  |
Deferred Taxes by classification |  |  |
Tax credit available to offset future tax liabilities | 96,900 |  |
State |  |  |
Deferred Taxes by classification |  |  |
Tax credit available to offset future tax liabilities | 30,600 |  |
Foreign |  |  |
Deferred Taxes by classification |  |  |
Net operating loss carryforwards | $ 92,700 |  |

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