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Summary of Significant Accounting Policies (Details 3) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Planned Major Maintenance Costs |  |  |  |  |  |  |  |
Turnaround costs |  |  |  |  |  | $ 38.1 | $ 109.2 | $ 6.8
Cost Classifications |  |  |  |  |  |  |  |
Depreciation and amortization not included in direct operating expenses |  |  |  |  |  | 184.5 | 156.4 | 148.1
Depreciation and amortization not included in selling, general and administrative expenses |  |  |  |  |  | $ 8.6 | 7.7 | 6.3
Revenue Recognition |  |  |  |  |  |  |  |
Expected period of delivery of deferred revenue |  |  |  |  |  | 12 months |  |
Nitrogen fertilizer plants |  |  |  |  |  |  |  |
Planned Major Maintenance Costs |  |  |  |  |  |  |  |
Turnaround costs |  |  |  | $ 6.6 | $ 0.4 | $ 6.6 | 7.0 | 0.0
Nitrogen fertilizer plants | Minimum |  |  |  |  |  |  |  |
Planned Major Maintenance Costs |  |  |  |  |  |  |  |
Frequency of planned major maintenance activities |  |  |  |  |  | 2 years |  |
Nitrogen fertilizer plants | Maximum |  |  |  |  |  |  |  |
Planned Major Maintenance Costs |  |  |  |  |  |  |  |
Frequency of planned major maintenance activities |  |  |  |  |  | 3 years |  |
Petroleum refineries | Minimum |  |  |  |  |  |  |  |
Planned Major Maintenance Costs |  |  |  |  |  |  |  |
Frequency of planned major maintenance activities |  |  |  |  |  | 4 years |  |
Petroleum refineries | Maximum |  |  |  |  |  |  |  |
Planned Major Maintenance Costs |  |  |  |  |  |  |  |
Frequency of planned major maintenance activities |  |  |  |  |  | 5 years |  |
Coffeyville refinery |  |  |  |  |  |  |  |
Planned Major Maintenance Costs |  |  |  |  |  |  |  |
Turnaround costs | $ 2.1 | $ 29.4 | $ 84.9 | $ 15.6 | $ 1.7 | $ 31.5 | 102.2 | 5.5
Wynnewood refinery |  |  |  |  |  |  |  |
Planned Major Maintenance Costs |  |  |  |  |  |  |  |
Turnaround costs |  |  |  |  |  | $ 0.0 | $ 0.0 | $ 1.3

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