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Cash, Cash Equivalents and Restricted Cash (Tables)

3 Months Ended

Mar. 31, 2019

Cash, Cash Equivalents and Restricted Cash [Abstract]

Schedule of Cash and Cash Equivalents

The following table summarizes the Company’s cash, cash equivalents and restricted cash as presented on the condensed consolidated balance sheet to amounts on the condensed consolidated statement of cash flows (in millions):

	March 31, 2019				December 31, 2018
Cash and cash equivalents	$	87.9			$	123.1
Deposits for financial assurance - current	30.5				30.3
Deposits for financial assurance - noncurrent	6.3				6.3
Total cash, cash equivalents and restricted cash	$	124.7			$	159.7

Restrictions on Cash and Cash Equivalents

The following table provides additional detail regarding the Company’s deposits for financial assurance (in millions):

	March 31, 2019								December 31, 2018
	Current				Long-Term				Current				Long-Term
NRC license	$	16.4			$	—			$	16.3			$	—
DOE lease	13.9				—				13.8				—
Workers compensation	—				6.0				—				6.0
Other	0.2				0.3				0.2				0.3
Total deposits for financial assurance	$	30.5			$	6.3			$	30.3			$	6.3

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Cash, Cash Equivalents and Restricted Cash [Abstract]

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Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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