Long-Term Debt and Capital Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2016

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, 2016:

(in millions)	Payments
2017	$	154.5
2018	836.1
2019	357.7
2020	684.4
2021	336.2
Thereafter	6,953.5
Total	$	9,322.4

Summary of capitalized leased facilities

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

(in millions)	2016			2015
Long-term power purchase commitment	$	140.3		$	140.3
Accumulated amortization	(109.5		)	(103.9		)
Total leased facilities	$	30.8		$	36.4

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, 2016 are as follows:

(in millions)	Payments
2017	$	13.9
2018	14.7
2019	15.5
2020	16.4
2021	17.2
Thereafter	7.6
Total minimum lease payments	85.3
Less: Estimated executory costs	(39.9		)
Net minimum lease payments	45.4
Less: Interest	(15.8		)
Present value of net minimum lease payments	29.6
Less: Due currently	(2.7		)
Long-term obligations under capital lease	$	26.9