Leases

12 Months Ended

Dec. 31, 2019

The following table summarizes our lease assets and liabilities as of December 31, 2019:



ROU Assets and Liabilities
	Balance Sheet Location	Financing		Operating
ROU - Asset	Right of use operating assets	$	—	$	204.0
ROU - Asset	Property, plant, and equipment	$	116.3	—
Lease liabilities (current)	Other current liabilities	$	5.2	18.8
Lease liabilities (noncurrent)	Noncurrent operating lease liabilities	$	—	164.1
Lease liabilities (noncurrent)	Other liabilities	$	72.9	—

The following table summarizes our lease related costs for the twelve months ended December 31, 2019:



Lease Cost
	Statement of Operations Location	Twelve months ended
		December 31, 2019
Financing Lease Cost		$	14.8
Amortization of ROU Assets	Operating Expenses	10.9
Interest on Lease Liabilities	Interest Expense	3.9
Operating Lease Cost	Operating Expenses	34.3
Variable Lease Cost	Operating Expenses	11.8
Total Lease Cost		$	60.9

Amounts above include $15.6 of lease costs associated with our CMO embedded lease arrangement for the twelve months ended December 31, 2019, which have been capitalized as part of the cost of product being manufactured at the site.

The following table summarizes supplemental cash flow information for the twelve months ended December 31, 2019:



Other Information
	Twelve months ended
	December 31, 2019
Cash Paid For Amounts Included In Measurement of Liabilities	$	32.3
Operating Cash Flows From Financing Leases	3.9
Operating Cash Flows From Operating Leases	23.5
Financing Cash Flows From Financing Leases	4.9
ROU Assets Obtained In Exchange For New Financing Liabilities ⁽¹⁾	—
ROU Assets Obtained In Exchange For New Operating Liabilities ⁽²⁾	27.5

(1) We capitalized $83.1 of ROU financing assets upon adoption of the new lease standard in the first quarter of 2019 that are excluded from the figures for the twelve months ended December 31, 2019. This figure excludes $44.2 of opening adjustments to ROU finance assets related, primarily, to prepayments of rent.
(2) We capitalized $172.2 of ROU operating assets upon adoption of the new lease standard in the first quarter of 2019 that are excluded from the figures for the twelve months ended December 31, 2019. This figure excludes $26.6 of opening adjustments to ROU operating assets related, primarily, to prepayments of rent.

The following tables summarize maturities of lease liabilities and the reconciliation of lease liabilities as of December 31, 2019:



Lease Liability Maturity Summary
Year	Financing		Operating		Total
2020	$	8.8	$	25.7	$	34.5
2021	9.0		23.0		32.0
2022	9.2		21.6		30.8
2023	9.2		20.9		30.1
2024	9.4		20.3		29.7
Thereafter	54.6		112.1		166.7



Reconciliation of Lease Liabilities	Financing			Operating			Total
Weighted-average Remaining Lease Term (years)	10.67			10.17			10.32
Weighted-average Discount Rate	4.85		%	4.10		%	4.33		%

Total Undiscounted Lease Liability	$	100.2		$	223.6		$	323.8
Imputed Interest	22.1			40.7			62.8
Total Discounted Lease Liability	78.1			182.9			261.0

For comparable purposes, our aggregate future minimum non-cancellable commitments under leases as of December 31, 2018 were as follows:



Year
2019	$	27.8
2020	24.7
2021	21.3
2022	19.9
2023	19.7
Thereafter	132.2

Excluded from the table above are commitments with Lonza Group AG and its affiliates (Lonza), a third party manufacturer that produces a portion of commercial and clinical quantities of our commercial products and product candidates. During the third quarter 2015, we entered into an agreement with Lonza whereby Lonza constructed a facility to be used to manufacture product under a supply agreement for Alexion at one of its existing facilities, resulting in the determination that the CMO arrangement contained a lease. This agreement requires us to make certain payments during the construction of the manufacturing facility and annual payments for ten years thereafter. As the arrangement contains both a lease and non-lease component, related to the supply of product, the consideration paid to Lonza is allocated between these components. As of December 31, 2018, we had various manufacturing and licensing agreements with Lonza, with remaining total non-cancellable future commitments of approximately $1,084.6. This amount included $88.7 of undiscounted, fixed payments applicable to our CMO embedded lease arrangement with Lonza, based on the relative standalone price of the lease and non-lease components of the arrangement at that time.