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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2015
Income Tax Disclosure [Abstract] |
Components of Provision for Income Taxes | The components of the provision for income taxes are as follows:
| Years Ended December 31,
| 2015 |  | 2014 |  | 2013
($ in thousands) |  |  |  |  |
Current |  |  |  |  |
Federal | $ | 28,077 |  |  | $ | 31,787 |  |  | $ | 10,395 |
State | 2,539 |  |  | 3,168 |  |  | 1,787 |
Total current tax expense | 30,616 |  |  | 34,955 |  |  | 12,182 |
Deferred |  |  |  |  |
Federal | 4,339 |  |  | 3,200 |  |  | 29,933 |
State | 2,017 |  |  | 1,194 |  |  | 2,663 |
Total deferred tax expense | 6,356 |  |  | 4,394 |  |  | 32,596 |
Total expense for income taxes | $ | 36,972 |  |  | $ | 39,349 |  |  | $ | 44,778 |
Reconciliation of Provision (Benefit) for Income Taxes | The following presents a reconciliation of the provision (benefit) for income taxes computed at the federal statutory rate to the provision (benefit) for income taxes recognized in the Consolidated Statements of Operations for the years indicated:
| Years Ended December 31,
| 2015 |  | 2014 |  | 2013
($ in thousands) |  |  |  |  |  |  |  |  |  |  |
Tax at statutory rate | $ | 23,675 |  |  | 35 | % |  | $ | 47,922 |  |  | 35 | % |  | $ | 41,968 |  |  | 35 | %
State taxes, net of federal benefit | 2,717 |  |  | 4 |  |  | 4,357 |  |  | 3 |  |  | 2,893 |  |  | 2 |
Uncertain tax positions | — |  |  | — |  |  | (30,961 | ) |  | (22 | ) |  | — |  |  | — |
IRS audit resolution | — |  |  | — |  |  | 15,505 |  |  | 11 |  |  | — |  |  | — |
Effect of net income attributable to noncontrolling interests | 1,492 |  |  | 2 |  |  | — |  |  | — |  |  | — |  |  | — |
Change in valuation allowance | 7,812 |  |  | 12 |  |  | 2,165 |  |  | 2 |  |  | (264 | ) |  | — |
Other, net | 1,276 |  |  | 2 |  |  | 361 |  |  | — |  |  | 181 |  |  | — |
Income tax expense | $ | 36,972 |  |  | 55 | % |  | $ | 39,349 |  |  | 29 | % |  | $ | 44,778 |  |  | 37 | %
Summary of Tax Effects of Temporary Differences | The tax effects of temporary differences are as follows:
| December 31,
| 2015 |  | 2014
($ in thousands) |  |  |
Deferred tax assets: |  |  |
Intangible assets | $ | 27,728 |  |  | $ | 36,340 |
Net operating losses | 20,591 |  |  | 21,547 |
Compensation accruals | 7,804 |  |  | 6,757 |
Investments | 8,704 |  |  | 8,717 |
Unrealized loss/(gain) | 12,157 |  |  | 2,362 |
Other | 118 |  |  | 46 |
Gross deferred tax assets | 77,102 |  |  | 75,769 |
Valuation allowance | (10,855 | ) |  | (2,397 | )
Gross deferred tax assets after valuation allowance | 66,247 |  |  | 73,372 |
Deferred tax liabilities: |  |  |
Intangible assets | (12,104 | ) |  | (12,718 | )
Other investments | — |  |  | (492 | )
Gross deferred tax liabilities | (12,104 | ) |  | (13,210 | )
Deferred tax assets, net | $ | 54,143 |  |  | $ | 60,162 |
Summary of Activity in Unrecognized Tax Benefits | Activity in unrecognized tax benefits is as follows:
| Years Ended December 31,
| 2015 |  | 2014 |  | 2013
($ in thousands) |  |  |  |  |
Balance, beginning of year | $ | — |  |  | $ | 32,602 |  |  | $ | 33,948 |
Decrease related to tax positions taken in prior years | — |  |  | (32,602 | ) |  | (1,346 | )
Increase related to positions taken in the current year | — |  |  | — |  |  | — |
Balance, end of year | $ | — |  |  | $ | — |  |  | $ | 32,602 |

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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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