Leases

9 Months Ended

Sep. 30, 2020

As of September 30, 2020, operating right-of-use (“ROU”) assets was $31.2 and lease liabilities was $31.0 ($5.3 of which is classified as current liabilities). The weighted-average remaining term for lease contracts was 6.0 years at September 30, 2020, with maturity dates ranging from October 2020 to February 2029. The weighted-average discount rate was 4.7% at September 30, 2020.

We incurred $2.5 and $3.0 of rental expense under operating leases for the three months ended September 30, 2020 and 2019, respectively, and $8.4 and $7.5 for the nine months ended September 30, 2020 and 2019, respectively. Certain operating leases contain rent escalation clauses and lease concessions that require additional rental payments in the later years of the term. Rent expense for these types of leases is recognized on a straight-line basis over the minimum lease term. Adjustments for straight-line rental expense for the respective periods was not material and as such, the majority of expense recognized was reflected in cash provided by operating activities for the respective periods. This expense consisted primarily of payments for base rent on building and equipment leases. Payments related to short-term lease costs and taxes and variable service charges on leased properties were immaterial. In addition, we have the right, but no obligation, to renew certain leases for various renewal terms.

The following table summarizes future minimum lease payments for non-cancelable operating leases as of September 30, 2020:


2020	$	1.5
2021	6.8
2022	6.5
2023	5.9
2024	5.5
Thereafter ⁽¹⁾	8.5
Total future minimum lease payments	$	34.7

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⁽¹⁾ As of September 30, 2020, future minimum lease payments for non-cancelable operating leases for period subsequent to 2024 relate to eight leased facilities.