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Revenue (Tables)

12 Months Ended

Dec. 31, 2018

Revenue [abstract]

Revenue - Disaggregation

	Uranium		Fuel services		Other		Total
Customer geographical region
Americas	$	695,678	$	191,791	$	69,012	$	956,481
Europe		275,096		50,000		10,693		335,789
Asia		713,282		72,198		13,911		799,391
	$	1,684,056	$	313,989	$	93,616	$	2,091,661
Contract type
Fixed-price	$	577,143	$	293,400	$	83,706	$	954,249
Market-related		1,106,913		20,589		9,910		1,137,412
	$	1,684,056	$	313,989	$	93,616	$	2,091,661

	Uranium		Fuel services		Other		Total
Customer geographical region
Americas	$	737,095	$	209,285	$	105,673	$	1,052,053
Europe		318,446		52,642		101,592		472,680
Asia		518,527		50,961		62,631		632,119
	$	1,574,068	$	312,888	$	269,896	$	2,156,852
Contract type
Fixed-price	$	502,437	$	287,104	$	252,702	$	1,042,243
Market-related		1,071,631		25,784		17,194		1,114,609
	$	1,574,068	$	312,888	$	269,896	$	2,156,852

Revenue - Contract liabilities

			2018		2017
Beginning of year		$	29,148	$	29,423
Additions			25,695		31,405
Recognized in revenue			(24,025)		(31,499)
Effect of movements in exchange rates			(91)		(181)
End of year		$	30,727	$	29,148

Revenue - Remaining performance obligations

		2019		2020		2021		2022		2023		Thereafter		Total
Uranium	$	277,396	$	182,711	$	110,353	$	112,459	$	107,362	$	166,615	$	956,896
Fuel services		240,551		215,851		236,993		199,815		139,731		714,893		1,747,834
Other		32,161		4,030		4,212		-		-		-		40,403
Total	$	550,108	$	402,592	$	351,558	$	312,274	$	247,093	$	881,508	$	2,745,133

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The disclosure of the disaggregation of revenue from contracts with customers. [Refer: Revenue from contracts with customers]

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