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Financial instruments (Tables) | 12 Months Ended
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Dec. 31, 2020
Financial Instruments [Abstract] |
Fair value measurement of assets | The following table provides the carrying value of each category of financial assets and liabilities and the related balance sheet item:
As at | Dec 31 2020 | Dec 31 2019
Financial assets: |  |
Financial assets measured at fair value: |  |
Derivative instruments designated as cash flow hedges 1 | $ | 3,371 |  | $ | 10
Financial assets not measured at fair value: |  |
Cash and cash equivalents | 833,841 |  | 416,763
Trade and other receivables, excluding tax receivable | 406,392 |  | 473,980
Restricted cash included in other assets | 41,979 |  | 39,413
Total financial assets 2 | $ | 1,285,583 |  | $ | 930,166
Financial liabilities: |  |
Financial liabilities measured at fair value: |  |
Derivative instruments designated as cash flow hedges 1 | $ | 181,372 |  | $ | 195,504
Financial liabilities not measured at fair value: |  |
Trade, other payables and accrued liabilities, excluding tax payable | 500,056 |  | 406,260
Long-term debt, including current portion | 2,363,372 |  | 1,768,853
Total financial liabilities | $ | 3,044,800 |  | $ | 2,370,617
1 The Geismar and Medicine Hat natural gas hedges and euro foreign currency hedges designated as cash flow hedges are measured at fair value based on industry accepted valuation models and inputs obtained from active markets. 2 The carrying amount of the financial assets represents the maximum exposure to credit risk at the respective reporting periods.
Maturity profile of fair value liabilities | The table below shows the nominal net cash outflows for derivative hedging instruments including natural gas forward contracts and forward exchange contracts, excluding credit risk adjustments, based upon contracted settlement dates. The amounts reflect the maturity profile of the hedging instruments and are subject to change based on the prevailing market rate at each of the future settlement dates. Financial asset derivative positions, if any, are held with investment-grade counterparties and therefore the settlement day risk exposure is considered to be negligible.
As at | Dec 31 2020 | Dec 31 2019
Within one year | $ | 15,047 |  | $ | 17,620 |
1-3 years | 44,841 |  | 45,432 |
3-5 years | 63,002 |  | 56,887 |
More than 5 years | 91,732 |  | 124,365 |
| $ | 214,622 |  | $ | 244,304 |
Fair value measurement of liabilities | The following table provides the carrying value of each category of financial assets and liabilities and the related balance sheet item:
As at | Dec 31 2020 | Dec 31 2019
Financial assets: |  |
Financial assets measured at fair value: |  |
Derivative instruments designated as cash flow hedges 1 | $ | 3,371 |  | $ | 10
Financial assets not measured at fair value: |  |
Cash and cash equivalents | 833,841 |  | 416,763
Trade and other receivables, excluding tax receivable | 406,392 |  | 473,980
Restricted cash included in other assets | 41,979 |  | 39,413
Total financial assets 2 | $ | 1,285,583 |  | $ | 930,166
Financial liabilities: |  |
Financial liabilities measured at fair value: |  |
Derivative instruments designated as cash flow hedges 1 | $ | 181,372 |  | $ | 195,504
Financial liabilities not measured at fair value: |  |
Trade, other payables and accrued liabilities, excluding tax payable | 500,056 |  | 406,260
Long-term debt, including current portion | 2,363,372 |  | 1,768,853
Total financial liabilities | $ | 3,044,800 |  | $ | 2,370,617
1 The Geismar and Medicine Hat natural gas hedges and euro foreign currency hedges designated as cash flow hedges are measured at fair value based on industry accepted valuation models and inputs obtained from active markets. 2 The carrying amount of the financial assets represents the maximum exposure to credit risk at the respective reporting periods. The carrying values of the Company’s financial instruments approximate their fair values, except as follows:
As at | December 31, 2020 | December 31, 2019
| Carrying value | Fair value | Carrying value | Fair value
Long-term debt excluding deferred financing fees | $ | 2,382,699 | $ | 2,559,771 | $ | 1,786,025 | $ | 1,831,292

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- Definition The disclosure of a maturity analysis for derivative financial liabilities, including the remaining contractual maturities for those derivative financial liabilities for which contractual maturities are essential for an understanding of the timing of the cash flows. [Refer: Derivative financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 39 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_39_b&doctype=Standard -URIDate 2020-01-01 + Details
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