Leases (Tables)

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Schedule of operating lease information

	Three Months Ended June 30,				Six Months Ended June 30,
		2020		2019		2020		2019
Lease cost: (1)
Operating lease cost	$	0.5	$	0.4	$	1.1	$	0.9
Short-term lease cost		—		0.3		—		0.9
Sublease income		(0.3)		(0.3)		(0.6)		(0.6)
Total lease cost	$	0.2	$	0.4	$	0.5	$	1.2

⁽¹⁾ Finance lease costs are immaterial to the Company

Schedule of other information

	Lease			Income from		Net lease
	Payments			subleasing		payments
2020	$	1.1		$	(0.6)	$	0.5
2021		2.0			(1.1)		0.9
2022		1.7			(1.1)		0.6
2023		1.2			(0.7)		0.5
2024		0.1			—		0.1
Thereafter		—			—		—
Total operating lease payments	$	6.1		$	(3.5)	$	2.6
Less: present value discount		(0.2)
Total operating lease liabilities	$	5.9
	Lease
	Payments
2020	$	—
2021		0.1
2022		0.1
Thereafter		—
Total finance lease payments	$	0.2
Less: amount representing interest		(0.1)
Total finance lease liabilities	$	0.1
Other Information:
Cash paid for amounts included in the measurement of lease liabilities (1):
Operating cash flows from operating leases	$	0.5
Weighted average remaining lease term (in years):
Operating leases		3.1
Finance leases		1.9
Weighted average discount rate - operating leases		3.91	%
Weighted average discount rate - finance leases		4.08	%

⁽¹⁾ Cash flows from finance leases are immaterial to the Company

Schedule of rental income from operating leases

	Rental Income from operating leases				Rental Income from operating leases
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
Solid Fuel	$	15.2	$	18.6	$	32.0	$	38.3
Natural Gas		6.1		5.8		12.0		11.9
Hydroelectric		17.9		22.5		36.2		41.0
	$	39.2	$	46.9	$	80.2	$	91.2