Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	7. LEASES We have operating and finance leases for corporate offices, warehouse buildings, sales offices, branch locations, vehicles, and certain equipment. Our leases have remaining lease terms of one to ten years, some of which may include options to extend the leases for up to five years, and some of which may include options to terminate the leases within one year. In addition to fixed lease payments, we incur variable lease charges that are recognized as incurred. These charges are primarily for maintenance and real estate taxes on leased facilities. The components of the lease expense for the years ended December 31, 2021, 2020, and 2019 were as follows: For the Years Ended December 31, 2021 20202019Operating lease cost $ 38.4 $ 37.9 $ 33.9Finance lease cost: Amortization of right-of-use assets 2.0 2.1 2.2Interest on lease liabilities 0.5 0.6 0.7Total finance lease cost 2.5 2.7 2.9Variable lease cost 10.5 10.6 9.5Total lease cost $ 51.4 $ 51.2 $ 46.3 Supplemental balance sheet information at December 31, 2021 and 2020 related to leases was as follows: December 31, 2021 2020Operating leases: Operating lease right-of-use assets $ 133.1 $ 118.8 Current operating lease liabilities $ 34.0 $ 31.2Non-current operating lease liabilities 107.5 95.9Total operating lease liabilities $ 141.5 $ 127.1 Finance leases: Property, at cost $ 14.0 $ 14.6Accumulated depreciation and amortization (9.2) (8.1)Net property $ 4.8 $ 6.5 Current obligations of finance leases $ 1.9 $ 2.3Finance leases, net of current obligations 4.2 5.7Total finance lease liabilities $ 6.1 $ 8.0 Weighted average remaining lease term: Operating leases 5.0 years 4.7 yearsFinance leases 4.0 years 4.4 yearsWeighted average discount rate: Operating leases 2.5% 2.9%Finance leases 7.8% 7.3% Supplemental cash flow and other information for the years ended December 31, 2021, 2020, and 2019 related to leases was as follows: For the Years Ended December 31, 2021 20202019Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 39.0 $ 37.3 $ 33.5Operating cash flows from finance leases 0.5 0.6 0.7Financing cash flows from finance leases 2.3 2.2 2.1 Right-of-use assets obtained in exchange for lease liabilities: Operating leases(A) $ 54.7 $ 35.3 $ 55.9Finance leases 0.4 0.3 2.0 (A) Includes $15.8 million and $1.6 million of operating leases established as a result of our acquisitions during 2021 and 2020, respectively. See Note 17, “Acquisitions”, for further information. Future minimum lease payments under non-cancellable leases as of December 31, 2021, were as follows: December 31, 2021 Operating‎Leases Finance‎LeasesFuture minimum lease payments 2022 $ 37.0 $ 2.32023 34.1 1.62024 27.2 1.42025 18.8 1.02026 13.9 0.3Thereafter 19.3 0.6Total future minimum lease payments $ 150.3 $ 7.2Less: imputed interest (8.8) (1.1)Total lease obligation $ 141.5 $ 6.1Less: current obligations (34.0) (1.9)Long-term lease obligation $ 107.5 $ 4.2