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Income Taxes (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Tax Examination [Line Items] |  |  |
Deferred tax assets related to acquisitions of non controlling interests | $ 3,500,000 | $ 1,000,000 |
Adjustment to the deferred tax assets related to acquisitions of non controlling interests | 3,000,000 |  |
Offset to adjustment, reduction in the previously reported tax receivable | 1,800,000 |  |
Additional-paid-in-capital | 1,200,000 |  |
Tax receivable included in other current assets | 3,400,000 | 4,300,000 |
Increase in current state income tax provision | 147,000 | 223,000 | $ 393,000
Accrued interest and penalties associated with any unrecognized tax benefits | 0 | 0 | 0
Interest expense recognized | $ 0 | $ 0 | $ 0
Federal [Member] | Maximum [Member] |  |  |
Income Tax Examination [Line Items] |  |  |
Periods open for examination | 2014 |  |
Federal [Member] | Minimum [Member] |  |  |
Income Tax Examination [Line Items] |  |  |
Periods open for examination | 2012 |  |
State [Member] | Maximum [Member] |  |  |
Income Tax Examination [Line Items] |  |  |
Periods open for examination | 2014 |  |
State [Member] | Minimum [Member] |  |  |
Income Tax Examination [Line Items] |  |  |
Periods open for examination | 2011 |  |

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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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