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Financial instruments and related risk management (Tables)

12 Months Ended

Dec. 31, 2020

Disclosure Of Financial Instruments [Abstract]

Pre-tax exposure to foreign currency exchange risk

			Carrying value
		Currency		(Cdn)		Gain (loss)
Cash and cash equivalents		USD	$	86,985	$	4,349
Accounts receivable		USD		136,894		6,845
Accounts payable and accrued liabilities		USD		(72,576)		(3,629)
Net foreign currency derivatives		USD		40,872		(38,811)

Counterparty credit risk, as represented by the carrying amount of the financial assets

		2020		2019
Cash and cash equivalents	$	918,382	$	1,062,431
Short-term investments		24,985		-
Accounts receivable [note 6]		166,788		323,430
Derivative assets [note 10]		45,605		10,504

Exposure to credit risk for trade receivables

			Carrying
		value
Investment grade credit rating		$	160,093
Non-investment grade credit rating			5,961
Total gross carrying amount		$	166,054
Loss allowance			-
Net		$	166,054

Aged trade receivables

			Corporate		Other
			customers		customers		Total
Current (not past due)		$	159,280	$	3,649		162,929
1-30 days past due			133		434		567
More than 30 days past due			2,043		515		2,558
Total		$	161,456	$	4,598		166,054

Liquidity risk, company's available debt facilities

The table below outlines the Company’s available debt facilities at December 31, 2020:
			Outstanding and
	Total amount		committed		Amount available
Unsecured revolving credit facility	$	1,000,000	$	-	$	1,000,000
Letter of credit facilities [note 13]		1,698,340		1,596,488		101,852

Maturity analysis of financial liabilities

The tables below present a maturity analysis of Cameco’s financial liabilities, including principal and interest, based on the
expected cash flows from the reporting date to the contractual maturity date:
					Due in
	Carrying		Contractual		less than		Due in 1-3		Due in 3-5		Due after 5
	amount		cash flows		1 year		years		years		years
Accounts payable and accrued liabilities	$	233,649	$	233,649	$	233,649	$	-	$	-	$	-
Long-term debt		995,541		1,000,000		-		-		500,000		500,000
Foreign currency contracts		4,733		4,733		1,658		3,075		-		-
Lease obligation [note 14]		7,951		8,525		3,657		3,896		972		-
Total contractual repayments	$	1,241,874	$	1,246,907	$	238,964	$	6,971	$	500,972	$	500,000
					Due in
					less than		Due in 1-3		Due in 3-5		Due after 5
			Total		1 year		years		years		years
Total interest payments on long-term debt			$	267,905	$	37,840	$	75,680	$	44,255	$	110,130

Carrying amounts and accounting classifications

At December 31, 2020
			FVTPL		Amortized cost		FVOCI - designated		Total
Financial assets
	Cash and cash equivalents		$	-	$	918,382	$	-	$	918,382
	Short-term investments			-		24,985		-		24,985
	Accounts receivable [note 6]			-		204,980		-		204,980
	Derivative assets [note 10]
		Foreign currency contracts		45,605		-		-		45,605
	Investments in equity securities [note 10]			-		-		43,873		43,873
			$	45,605	$	1,148,347	$	43,873	$	1,237,825
Financial liabilities
	Accounts payable and accrued liabilities [note 12]		$	-	$	233,649	$	-	$	233,649
	Lease obligation [note 14]			-		7,951		-		7,951
	Derivative liabilities [note 14]
		Foreign currency contracts		4,733		-		-		4,733
	Long-term debt [note 13]			-		995,541		-		995,541
				4,733		1,237,141		-		1,241,874
Net			$	40,872	$	(88,794)	$	43,873	$	(4,049)

At December 31, 2019
			FVTPL		Amortized cost		FVOCI - designated		Total
Financial assets
	Cash and cash equivalents		$	-	$	1,062,431	$	-	$	1,062,431
	Accounts receivable [note 6]			-		328,044		-		328,044
	Derivative assets [note 10]
		Foreign currency contracts		8,191		-		-		8,191
		Interest rate contracts		2,313		-		-		2,313
	Investments in equity securities [note 10]			-		-		24,408		24,408
			$	10,504	$	1,390,475	$	24,408	$	1,425,387
Financial liabilities
	Accounts payable and accrued liabilities [note 12]		$	-	$	181,799	$	-	$	181,799
	Lease obligation			-		12,869		-		12,869
	Derivative liabilities [note 14]
		Foreign currency contracts		12,524		-		-		12,524
	Long-term debt [note 13]			-		996,718		-		996,718
				12,524		1,191,386		-		1,203,910
Net			$	(2,020)	$	199,089	$	24,408	$	221,477

Fair value measurement, carrying amounts

As at December 31, 2020
					Fair value
		Carrying value			Level 1		Level 2		Total
Derivative assets [note 10]
	Foreign currency contracts	$	45,605	$	-	$	45,605	$	45,605
Investments in equity securities [note 10]			43,873		43,873		-		43,873
Derivative liabilities [note 14]
	Foreign currency contracts		(4,733)		-		(4,733)		(4,733)
Long-term debt [note 13]			(995,541)		-		(1,173,280)		(1,173,280)
Net		$	(910,796)	$	43,873	$	(1,132,408)	$	(1,088,535)

As at December 31, 2019
					Fair value
		Carrying value			Level 1		Level 2		Total
Derivative assets [note 10]
	Foreign currency contracts	$	8,191	$	-	$	8,191	$	8,191
	Interest rate contracts		2,313		-		2,313		2,313
Investments in equity securities [note 10]			24,408		24,408		-		24,408
Derivative liabilities [note 14]
	Foreign currency contracts		(12,524)		-		(12,524)		(12,524)
Long-term debt [note 13]			(996,718)		-		(1,111,923)		(1,111,923)
Net		$	(974,330)	$	24,408	$	(1,113,943)	$	(1,089,535)

Fair value of derivative instruments and classification

					2020		2019
Non-hedge derivatives:
	Foreign currency contracts			$	40,872	$	(4,333)
	Interest rate contracts				-		2,313
Net				$	40,872	$	(2,020)
Classification:
	Current portion of long-term receivables, investments and other [note 10]			$	16,466	$	4,144
	Long-term receivables, investments and other [note 10]				29,139		6,360
	Current portion of other liabilities [note 14]				(1,658)		(7,505)
	Other liabilities [note 14]				(3,075)		(5,019)
Net				$	40,872	$	(2,020)

Summary of components of non-hedge derivative gains losses

The following table summarizes the different components of the gains (losses) on derivatives included in net earnings:
			2020		2019
Non-hedge derivatives:
	Foreign currency contracts	$	30,600	$	31,863
	Interest rate contracts		5,977		2,068
	Uranium contracts		-		(1,662)
Net		$	36,577	$	32,269

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