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Capitalized Interest (Tables) | 3 Months Ended
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Mar. 31, 2019
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 our capitalized interest during the three months ended March 31, 2019 and 2018:
|  | Three Months Ended March 31,
|  | 2019 |  | 2018
Interest capitalized, beginning of period |  | $ | 4,154 |  |  | $ | 5,583 |
Interest incurred |  | 6,499 |  |  | 6,595 |
Interest charged to interest expense |  | (6,215 | ) |  | (6,282 | )
Interest charged to cost of sales |  | (298 | ) |  | (351 | )
Interest capitalized, end of period |  | $ | 4,140 |  |  | $ | 5,545 |

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