COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2021

The commitments are noted in the table below.

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* Estimated annual contractual obligations are based on the same payment levels as 2021.

Supplemental balance sheet information related to leases was as follows:


	As of December 31, 2021			As of December 31, 2020
Operating leases
Other assets: Other	$	15,318		$	15,589

Other accrued liabilities	$	1,802		$	1,757
Other long-term liabilities	13,601			13,868
Total operating lease liabilities	$	15,403		$	15,625

Finance leases
Depreciable plant and equipment	$	19,494		$	18,207
Accumulated depreciation and amortization	(12,411)			(10,813)
Net utility plant	$	7,083		$	7,394

Current maturities of long-term debt, net	$	809		$	721
Long-term debt, net	4,918			4,483
Total finance lease liabilities	$	5,727		$	5,204

Weighted average remaining lease term
Operating leases	129 months			135 months
Finance leases	46 months			64 months

Weighted average discount rate
Operating leases	3.4		%	3.5		%
Finance leases	4.6		%	5.5		%

The components of lease expense were as follows:


	2021		2020

Operating lease cost	$	2,464	$	2,284

Finance lease cost:
Amortization of right-of-use assets	$	1,598	$	1,169
Interest on lease liabilities	282		306
Total finance lease cost	$	1,880	$	1,475

Short-term lease cost	$	2,079	$	2,048
Variable lease cost	415		306
Total lease cost	$	6,838	$	6,113

Supplemental cash flow information related to leases was as follows:


	2021		2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	2,445	$	2,306
Operating cash flows from finance leases	$	282	$	306
Financing cash flows from finance leases	$	766	$	680
Non-cash activities: right-of-use assets obtained in exchange for lease obligations:
Operating leases	$	1,707	$	3,100
Finance leases	$	1,286	$	—

Maturities of lease liabilities as of December 31, 2021 are as follows:

Maturities of lease liabilities as of December 31, 2021 are as follows: