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Capitalized Interest (Tables) | 3 Months Ended
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Mar. 31, 2018
Capitalized Interest Costs, Including Allowance for Funds Used During Construction [Abstract] |
Summary of Interest Costs Incurred, Capitalized, Expensed and Charged to Cost of Sales | The following table reflects the changes in the Company's capitalized interest during the three months ended March 31, 2018 and 2017:
|  | Three Months Ended March 31,
|  | 2018 |  | 2017
Interest capitalized, beginning of period |  | $ | 5,583 |  |  | $ | 5,106 |
Interest incurred |  | 6,595 |  |  | 6,559 |
Interest charged to interest expense |  | (6,282 | ) |  | (5,836 | )
Interest charged to cost of sales |  | (351 | ) |  | (265 | )
Interest capitalized, end of period |  | $ | 5,545 |  |  | $ | 5,564 |

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