As of January 1, 2019, we adopted the provisions of ASC 842, accounting for leases. In connection with the adoption of ASC 842 on January 1, 2019 we elected certain practical expedients available under ASC 842-10-65-1 that provide certain concessions to ease the burden of transition, such as the treatment of indirect lease costs, and service contracts which may contain embedded leases.

At December 31, 2019, we had approximately $66.5 million of right of use assets recorded in non-current other assets, and $66.5 million of related liabilities, $53.6 million of which was included in other non-current liabilities with the current portion in accrued liabilities. The weighted average of the remaining lease terms was approximately 9 years. We discount the future lease payments of our leases using the prevailing rates extended to us by our lenders relevant to the period of inception. These rates are comprised of LIBOR plus a stated spread less a component related to collateralization. The rates are relative to the duration of the lease at inception and the country of origin. The weighted average interest rate used in calculating the fair values listed above was 3.0%.

The following table lists the schedule of future undiscounted cash payments related to right of use assets by year:

(In millions)
2020	$	12.9
2021		11.3
2022		9.4
2023		8.6
2024		7.7
Thereafter		29.5
Total	$	79.4

Operating lease expense recognized during the year ended December 31, 2019, 2018 and 2017, was $15.5 million, $13.8 million and $12.0 million and was recorded in cost of goods sold as well as in operating expenses, in our consolidated statements of operations. Expense related to operating leases which have a duration of a year or less were not material. Finance leases at December 31, 2019 were immaterial.