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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2014
Income Taxes |
Components of the Company's deferred tax assets and liabilities |
Year ended December 31, |  | 2014 |  | 2013 |
|  | (in thousands) |
Deferred tax assets: |  |  |  |  |  |  |
Stock-based compensation expense |  | $ | 44,607 |  | $ | 51,045 |
Accrued expenses |  |  | 57,785 |  |  | 57,387 |
Intangibles |  |  | 142,591 |  |  | 43,204 |
Deferred tax assets resulting from unrecognized tax benefits |  |  | 11,365 |  |  | 10,817 |
Net operating losses |  |  | 11,941 |  |  | 4,690 |
Accumulated other comprehensive loss |  |  | 592 |  |  | 1,863 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Gross deferred tax assets |  |  | 268,881 |  |  | 169,006 |
Less valuation allowance |  |  | (6,851 | ) |  | (3,664 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net deferred tax assets |  |  | 262,030 |  |  | 165,342 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred tax liabilities: |  |  |  |  |  |  |
Property, plant and equipment |  |  | (123,108 | ) |  | (102,379 | )
Investments in unconsolidated affiliates |  |  | (4,276 | ) |  | (5,782 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net deferred tax liabilities |  |  | (127,384 | ) |  | (108,161 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net: |  | $ | 134,646 |  | $ | 57,181 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Reflected on consolidated balance sheets: |  |  |  |  |  |  |
Current deferred tax assets, net |  | $ | 55,579 |  | $ | 71,093 |
Noncurrent deferred tax assets (liabilities), net |  |  | 79,067 |  |  | (13,912 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net deferred taxes |  | $ | 134,646 |  | $ | 57,181 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of the provision for income taxes charged to operations |
Year ended December 31, |  | 2014 |  | 2013 |  | 2012 |
|  | (in thousands) |
Current tax expense (benefit) |  |  |  |  |  |  |  |  |  |
Federal |  | $ | 17,413 |  | $ | 96,537 |  | $ | 96,490 |
State |  |  | 8,764 |  |  | 2,200 |  |  | 14,448 |
Foreign |  |  | 7,515 |  |  | 4,708 |  |  | (3,366 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total current |  |  | 33,692 |  |  | 103,445 |  |  | 107,572 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred tax (benefit) expense |  |  |  |  |  |  |  |  |  |
Federal |  |  | (56,125 | ) |  | (207,337 | ) |  | 44,874 |
State |  |  | (16,153 | ) |  | (17,646 | ) |  | 109 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total deferred |  |  | (72,278 | ) |  | (224,983 | ) |  | 44,983 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total income tax (benefit) provision |  | $ | (38,586 | ) | $ | (121,538 | ) | $ | 152,555 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Reconciliation of the statutory federal income tax rate to the actual effective income tax rate |
Year ended December 31, |  | 2014 |  | 2013 |  | 2012 |
Percent of pretax (loss) income |  |  |  |  |  |  |  |  |  |
Federal taxes |  |  | 35.0 | % |  | 35.0 | % |  | 35.0 | %
State and local income taxes |  |  | 0.8 | % |  | 1.1 | % |  | 1.4 | %
Permanent differences |  |  | (20.9 | )% |  | (22.7 | )% |  | 5.3 | %
Foreign |  |  | (1.6 | )% |  | (0.1 | )% |  | 0.2 | %
Other miscellaneous items |  |  | 0.9 | % |  | 0.0 | % |  | (0.1 | )%
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  |  | 14.2 | % |  | 13.3 | % |  | 41.8 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year ended December 31, |  | 2014 |  | 2013 |  | 2012 |
|  | (in thousands) |
Amount based upon pretax (loss) income |  |  |  |  |  |  |  |  |  |
Federal taxes |  | $ | (95,123 | ) | $ | (320,557 | ) | $ | 127,584 |
State and local income taxes |  |  | (2,288 | ) |  | (9,677 | ) |  | 5,044 |
Permanent differences |  |  | 56,886 |  |  | 207,928 |  |  | 19,223 |
Foreign |  |  | 4,356 |  |  | 1,200 |  |  | 886 |
Other miscellaneous items |  |  | (2,417 | ) |  | (432 | ) |  | (182 | )
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
|  | $ | (38,586 | ) | $ | (121,538 | ) | $ | 152,555 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Reconciliation of liability for unrecognized tax benefits |
|  | Noncurrent tax liabilities |
|  | (in thousands) |
Balance at December 31, 2012 |  | $ | 20,393 |
Additions based on current year positions |  |  | 5,875 |
Additions based on prior year positions |  |  | 1,056 |
Decreases due to settlements and/or reduction in reserves |  |  | (5,536 | )
Currency translation adjustments |  |  | (1,822 | )
​ | ​ | ​ | ​ | ​
Balance at December 31, 2013 |  |  | 19,966 |
Additions based on current year positions |  |  | 6,016 |
Additions based on prior year positions |  |  | 5,202 |
Payments made on account |  |  | (12,131 | )
Decreases due to settlements and/or reduction in reserves |  |  | (8,385 | )
Currency translation adjustments |  |  | (2,480 | )
​ | ​ | ​ | ​ | ​
Balance at December 31, 2014 |  | $ | 8,188 |
​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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- Definition Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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