Balance Sheet Components

12 Months Ended

Dec. 31, 2021

Balance Sheet Related Disclosures [Abstract]

NOTE 3. BALANCE SHEET COMPONENTS

Materials and Supplies, Fuel Stock and Stored Natural Gas

Inventories of materials and supplies, fuel stock and stored natural gas are recorded at average cost for regulated operations and the lower of cost or market for non-regulated operations and consisted of the following as of December 31 (dollars in thousands):


	2021		2020
Materials and supplies	$	62,003	$	53,258
Fuel stock		5,126		4,658
Stored natural gas		17,604		9,535
Total	$	84,733	$	67,451

Other Current Assets

Other current assets consisted of the following as of December 31 (dollars in thousands):


	2021		2020
Collateral posted for derivative instruments after netting with outstanding derivative liabilities	$	21,477	$	4,336
Prepayments		24,387		24,411
Income taxes receivable		29,615		49,814
Other		5,275		6,324
Total	$	80,754	$	84,885

Other Property and Investments-Net and Other Non-Current Assets

Other property and investments-net and other non-current assets consisted of the following as of December 31 (dollars in thousands):


	2021		2020
Operating lease ROU assets	$	70,133	$	71,891
Finance lease ROU assets		43,697		47,338
Non-utility property		20,033		19,508
Equity investments		91,057		59,318
Investment in affiliated trust		11,547		11,547
Notes receivable		14,949		14,454
Deferred compensation assets		9,513		9,174
Assets held for sale (1)		—		3,462
Other		19,614		26,947
Total	$	280,543	$	263,639

(1)

The Company sold certain subsidiary assets associated with Steam Plant Square and Brew Pub during 2021.

Other Current Liabilities

Other current liabilities consisted of the following as of December 31 (dollars in thousands):


	2021		2020
Accrued taxes other than income taxes	$	41,706	$	45,099
Derivative liabilities		28,801		14,008
Employee paid time off accruals		27,741		26,495
Accrued interest		17,538		17,083
Pensions and other postretirement benefits		13,582		11,987
Other		39,493		35,159
Total	$	168,861	$	149,831

Other Non-Current Liabilities and Deferred Credits

Other non-current liabilities and deferred credits consisted of the following as of December 31 (dollars in thousands):


	2021		2020
Operating lease liabilities	$	66,068	$	67,716
Finance lease liabilities		45,730		48,815
Deferred investment tax credits		29,313		29,866
Asset retirement obligations		17,142		17,194
Derivative liabilities		4,525		37,427
Other		15,347		13,981
Total	$	178,125	$	214,999