Long-Term Debt and Capital Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2018

Long-term Debt and Capital Lease Obligations [Abstract]

Long-term debt outstanding maturities and sinking fund requirements

The following table shows the future maturities of our long-term debt outstanding (excluding obligations under capital leases) as of December 31, 2018:



(in millions)	Payments
2019	$	360.1
2020	686.9
2021	1,338.8
2022	40.8
2023	42.8
Thereafter	7,918.2
Total	$	10,387.6

Summary of capitalized leased facilities

The following is a summary of our capitalized leased facilities as of December 31:



(in millions)	2018			2017
Long-term power purchase commitment	$	140.3		$	140.3
Accumulated amortization	(120.9		)	(115.2		)
Total leased facilities	$	19.4		$	25.1

Future minimum lease payments under capital lease and present value of net minimum lease payments

Future minimum lease payments under our capital lease and the present value of our net minimum lease payments as of December 31, 2018 are as follows:



(in millions)	Payments
2019	$	15.5
2020	16.4
2021	17.2
2022	7.6
Thereafter	—
Total minimum lease payments	56.7
Less: Estimated executory costs	(26.1		)
Net minimum lease payments	30.6
Less: Interest	(7.3		)
Present value of net minimum lease payments	23.3
Less: Due currently	(4.9		)
Long-term obligations under capital lease	$	18.4