Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2021

Commitments and Contingencies [Abstract]

Operating Leases

The following table presents information regarding operating leases where we are the lessee at March 31, 2021:

Asset Category	ROU Asset Carrying Value (1)		Lease Liability Carrying     Value (2)		Weighted- Average Remaining Term	Weighted- Average Discount Rate (3)
Storage and pipeline facilities	$	124.3	$	124.9	15 years	4.3%
Transportation equipment		31.6		33.6	3 years	3.3%
Office and warehouse space		168.7		185.9	16 years	3.2%
Total	$	324.6	$	344.4

(1)	Right-of-use (“ROU”) asset amounts are a component of “Other assets” on our Unaudited Condensed Consolidated Balance Sheet.
(2)	At March 31, 2021, lease liabilities of $27.1 million and $317.3 million were included within “Other current liabilities” and “Other liabilities,” respectively.
(3)	The discount rate for each category of assets represents the weighted average of either (i) the implicit rate applicable to the underlying leases (where determinable) or (ii) our incremental borrowing rate adjusted for collateralization (if the implicit rate is not determinable).  In general, the discount rates are based on either information available at the lease commencement date or January 1, 2019 for leases existing at the adoption date for ASC 842, Leases.

Consolidated Lease Expense

The following table disaggregates our total operating lease expense for the periods indicated:

	For the Three Months Ended March 31,
	2021		2020
Long-term operating leases:
Fixed lease expense:
Non-cash lease expense (amortization of ROU assets)	$	9.3	$	10.0
Related accretion expense on lease liability balances		3.1		3.4
Total fixed lease expense		12.4		13.4
Variable lease expense		0.4		0.2
Subtotal operating lease expense		12.8		13.6
Short-term operating leases		13.5		13.2
Total operating lease expense	$	26.3	$	26.8