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Income Taxes (Details) - Taxable REIT Subsidiary - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Deferred income tax (expense) benefit |  |  |  |
Federal | $ 41 | $ 79 | $ 86 | $ 132
State | 9 | 13 | 19 | 24
Total income tax expense | $ 50 | $ 92 | $ 105 | $ 156
Effective tax rate (as a percent) |  |  | 37.70% | 37.40%

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