Leases (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Schedule of amounts recognized in the Condensed Consolidated Balance Sheet

Amounts recognized in the Condensed Consolidated Balance Sheet related to the Lease are included in the table below. Other than the Lease described above, we had no leases accounted for as finance leases as of June 30, 2019.

		June 30,
	Classification	2019
Finance lease assets	Property, plant, and equipment, net (a)	$	667.3
Finance lease liabilities	Finance lease liabilities (noncurrent)	$	711.3
(a) Finance lease assets are recorded net of accumulated amortization of $68.9 million as of June 30, 2019.

Schedule of lease cost and other information

Finance lease costs consist of the following:

	Three Months Ended June 30, 2019		Six Months Ended June 30, 2019
Amortization of right-of-use assets	$	3.7	$	7.2
Interest on lease liabilities	7.3		14.5
	$	11.0	$	21.7

Other information related to our finance lease includes the following:

	June 30,
	2019
Remaining lease term (in years)	2.67
Discount rate	3.14	%

Schedule of maturities of lease liabilities

The following is an analysis of lease liability maturities as of June 30, 2019:    

	Operating Leases			Finance Leases
2019	$	4.0		$	12.0
2020	8.2			22.1
2021	5.8			21.8
2022	3.0			725.4
2023	2.6			—
2024	2.9			—
Thereafter	4.2			—
Total undiscounted lease payments	30.7			781.3
Imputed interest	(3.0		)	(63.3		)
Debt financing costs	—			(6.7		)
Total lease liabilities	$	27.7		$	711.3

Schedule of maturities of lease liabilities

The following is an analysis of lease liability maturities as of June 30, 2019:    

	Operating Leases			Finance Leases
2019	$	4.0		$	12.0
2020	8.2			22.1
2021	5.8			21.8
2022	3.0			725.4
2023	2.6			—
2024	2.9			—
Thereafter	4.2			—
Total undiscounted lease payments	30.7			781.3
Imputed interest	(3.0		)	(63.3		)
Debt financing costs	—			(6.7		)
Total lease liabilities	$	27.7		$	711.3

Schedule of future minimum noncancelable lease commitments

As of December 31, 2018, the estimated future minimum noncancelable lease commitments, excluding the purchase price we would be obligated to pay if we were to exercise our option to purchase the Facility, were as follows:

	Operating Leases		Capital and Facility Lease Obligations
2019	$	10.4	$	26.4
2020	3.8		28.4
2021	3.4		27.9
2022	2.2		7.0
2023	1.5		—
Thereafter	4.1		—
	$	25.4	$	89.7

Schedule of future minimum noncancelable lease commitments

As of December 31, 2018, the estimated future minimum noncancelable lease commitments, excluding the purchase price we would be obligated to pay if we were to exercise our option to purchase the Facility, were as follows:

	Operating Leases		Capital and Facility Lease Obligations
2019	$	10.4	$	26.4
2020	3.8		28.4
2021	3.4		27.9
2022	2.2		7.0
2023	1.5		—
Thereafter	4.1		—
	$	25.4	$	89.7