v3.19.3.a.u2

Accounting for derivative instruments and hedging activities (Details) J in Millions, $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Apr. 23, 2019 MMBTU | Dec. 31, 2019 USD ($) MMBTU J item $ / J | Dec. 31, 2018 USD ($) MMBTU | Apr. 13, 2016 USD ($)
Derivative instruments |  |  |  |
Number of derivative contracts designated as cash flow hedges | item |  | 1 |  |
Adjusted Eurodollar Rate | New term loan facility |  |  |  |
Derivative instruments |  |  |  |
Applicable margin (as a percent) |  | 2.75% |  |
Nipigon Project |  |  |  |
Derivative instruments |  |  |  |
Notional amount, energy (in joules: Ontario, in Mmbtu: Orlando and Morris) | J |  | 6,500 |  |
Gas purchase agreements | Nipigon Project |  |  |  |
Derivative instruments |  |  |  |
Price per Gj | $ / J |  | 4.57 |  |
Gas purchase agreements | Nipigon Project | Minimum |  |  |  |
Derivative instruments |  |  |  |
Notional amount, energy (in joules: Ontario, in Mmbtu: Orlando and Morris) | J |  | 6,500 |  |
Gas purchase and sales agreements |  |  |  |
Derivative instruments |  |  |  |
Notional amount, energy (in joules: Ontario, in Mmbtu: Orlando and Morris) | MMBTU | 700,000 |  |  |
Natural gas swaps |  |  |  |
Derivative instruments |  |  |  |
Notional amount, energy (in joules: Ontario, in Mmbtu: Orlando and Morris) | MMBTU |  | 16,300,000 | 16,300,000 |
Natural gas swaps | Orlando project |  |  |  |
Derivative instruments |  |  |  |
Notional amount, energy (in joules: Ontario, in Mmbtu: Orlando and Morris) | MMBTU |  | 16,300,000 |  |
Natural gas swaps during 2016 | Orlando project |  |  |  |
Derivative instruments |  |  |  |
Percentage of the entity's share in required natural gas purchases hedge |  | 100.00% |  |
Interest rate swaps |  |  |  |
Derivative instruments |  |  |  |
Notional amount |  | $ 468.4 | $ 616.6 |
Minimum fixed interest rate (as a percent) |  | 3.75% |  |
Interest rate swaps | New term loan facility |  |  |  |
Derivative instruments |  |  |  |
Swaption interest rate (as a percent) |  | 2.00% |  |
Interest rate swaps | Minimum | Adjusted Eurodollar Rate | New term loan facility |  |  |  |
Derivative instruments |  |  |  |
Minimum fixed interest rate (as a percent) |  | 1.00% |  |
Interest rate swaps | Swaption interest rate until February 15, 2019 | Cadillac Project |  |  |  |
Derivative instruments |  |  |  |
Swaption interest rate (as a percent) |  | 6.10% |  |
Interest rate swaps | Swaption interest rate from February 16, 2019 to February 15, 2023 | Cadillac Project |  |  |  |
Derivative instruments |  |  |  |
Swaption interest rate (as a percent) |  | 6.30% |  |
Interest rate swaps | Swaption interest rate after February 15, 2023 | Cadillac Project |  |  |  |
Derivative instruments |  |  |  |
Swaption interest rate (as a percent) |  | 6.40% |  |
APLP Holdings | Senior secured term loans |  |  |  |
Derivative instruments |  |  |  |
Face amount of debt |  |  |  | $ 700.0
APLP Holdings | Interest rate swaps | Adjusted Eurodollar Rate | New term loan facility |  |  |  |
Derivative instruments |  |  |  |
Notional amount |  | $ 370.6 |  |
Swaption all in one interest rate (as a percent) |  | 4.75% |  |
APLP Holdings | Interest rate swaps | Adjusted Eurodollar Rate | New term loan facility | Long-term debt excluding debentures |  |  |  |
Derivative instruments |  |  |  |
Remaining aggregate principal amount |  | $ 380.0 |  |
APLP Holdings | Interest rate swaps | Derivative Swaption Interest Rate from September 30 2018 to September 30 2019 | One-month LIBOR | New term loan facility |  |  |  |
Derivative instruments |  |  |  |
Swaption interest rate (as a percent) |  | 1.39% |  |
APLP Holdings | Interest rate swaps | Derivative Swaption Interest Rate from September 30 2018 to September 30 2019 | Minimum | New term loan facility |  |  |  |
Derivative instruments |  |  |  |
Notional amount |  | $ 9.4 |  |
APLP Holdings | Interest rate swaps | Derivative Swaption Interest Rate from September 30 2018 to September 30 2019 | Maximum | New term loan facility |  |  |  |
Derivative instruments |  |  |  |
Notional amount |  | $ 45.0 |  |

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