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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2015
Accounting Policies [Abstract] |
Interest Cost Capitalized and Incurred | Interest cost capitalized and incurred in the years ended December 31, 2015, 2014, and 2013 are as follows:
|  | Year Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Interest incurred |  | $ | 1,962 |  |  | $ | 2,180 |  |  | $ | 2,626 |
Interest capitalized |  |  | 714 |  |  |  | 379 |  |  |  | 382 |
Interest expense |  | $ | 1,248 |  |  | $ | 1,801 |  |  | $ | 2,244 |

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