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Revenue and Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenue from External Customers by Geographic Areas

The following table presents revenue from SWU and uranium sales disaggregated by geographical region, including foreign countries representing 10% or more of revenue, based on the billing addresses of customers (in millions):

			Year Ended December 31,
			2021						2020
United States			$	108.3					$	115.0
Foreign:
Belgium			36.6						35.8
Japan			34.6						23.4
Other			6.6						16.3
Total foreign			77.8						75.5
Revenue - SWU and uranium			$	186.1					$	190.5

Revenue by customer location, including customers in a foreign country representing 10% or more of total revenue, follows (in millions):

			Year Ended December 31,
			2021						2020
United States			$	220.5					$	171.7
Foreign:
Belgium			36.6						35.8
Japan			34.6						23.4
Other			6.6						16.3
Total foreign			77.8						75.5
Total revenue			$	298.3					$	247.2
* less than 10%

Contract with Customer, Asset and Liability

The following table presents changes in contract liability balances (in millions):

						December 31,
						2021						2020						Change
Accrued loss on HALEU Contract:
Current - Accounts payable and accrued liabilities						$	0.5					$	7.0					$	(6.5)
Non-current - Other long-term liabilities						$	—					$	0.7					$	(0.7)
Deferred revenue - current						$	288.1					$	281.7					$	6.4
Advances from customers - current						$	15.0					$	1.5					$	13.5
Advances from customers - non current						$	45.1					$	45.2					$	(0.1)

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

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- References

No definition available.

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X

- Definition

Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph a
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

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