Leases (Tables)

12 Months Ended

Dec. 31, 2020

The components of lease expense were as follows:


	Year ended
	December 31, 2020		December 31, 2019
Operating lease cost (1)	$	13.2	$	13.4
Variable lease cost	0.1		—

Finance lease cost:
Amortization of right-of-use assets	$	1.2	$	1.2
Interest on lease liabilities	0.1		0.1
Total finance lease cost	$	1.3	$	1.3

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(1) Includes short-term lease cost of $3.7 and $3.8, at December 31, 2020 and 2019 respectively.

Supplemental cash flow information related to leases was as follows:


	Year ended
	December 31, 2020		December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flow from operating leases	$	9.7	$	9.7
Operating cash flows from finance leases	0.1		0.1
Financing cash flows from finance leases	1.3		1.2
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for new lease obligations	19.9		5.2
Finance lease right-of-use assets obtained in exchange for new lease obligations	1.2		1.3

Supplemental Lease Information

Supplemental balance sheet information related to leases was as follows:


	December 31, 2020		December 31, 2019
Operating Leases:					Affected Line Item in the Consolidated Balance Sheets
Operating lease ROU assets (1)	$	41.3	$	30.6	Other assets

Operating lease current liabilities	$	7.6	$	7.7	Accrued expenses
Operating lease non-current liabilities	31.4		17.6		Other long-term liabilities
Total operating lease liabilities	$	39.0	$	25.3

Finance Leases:
Finance Lease Assets	$	2.5	$	2.5	Property, plant and equipment, net

Finance lease current liabilities	$	1.0	$	1.0	Current maturities of long-term debt
Finance lease non-current liabilities	1.6		1.7		Long-term debt
Total finance lease liabilities	$	2.6	$	2.7

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(1) Includes favorable leasehold interests as of December 31, 2020 and 2019 of $6.6 and $6.9, respectively, recorded as part of the acquisition of Patterson-Kelley.

The weighted average remaining lease terms (years) of our leases as of December 31, 2020 and December 31, 2019, were as follows:


	December 31,
	2020	2019
Operating Leases	6.9	5.2
Finance Leases	3.2	3.3

Finance Lease Maturities

The future minimum payments under our operating and finance leases were as follows as of December 31, 2020:


	Operating Leases		Finance Leases		Total

Next 12 months	$	8.7	$	1.0	$	9.7
12 to 24 months	7.8		0.8		8.6
24 to 36 months	7.2		0.5		7.7
36 to 48 months	6.7		0.3		7.0
48 to 60 months	2.4		0.1		2.5
Thereafter	10.6		—		10.6
Total lease payments	43.4		2.7		46.1
Less imputed interest	4.4		0.1		4.5
Total	$	39.0	$	2.6	$	41.6

Operating Lease Maturities

The future minimum payments under our operating and finance leases were as follows as of December 31, 2020:


	Operating Leases		Finance Leases		Total

Next 12 months	$	8.7	$	1.0	$	9.7
12 to 24 months	7.8		0.8		8.6
24 to 36 months	7.2		0.5		7.7
36 to 48 months	6.7		0.3		7.0
48 to 60 months	2.4		0.1		2.5
Thereafter	10.6		—		10.6
Total lease payments	43.4		2.7		46.1
Less imputed interest	4.4		0.1		4.5
Total	$	39.0	$	2.6	$	41.6