CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
NET INCOME	$ 21,262	$ 40,514
OTHER COMPREHENSIVE INCOME, NET OF TAX
Pension and other postretirement benefits activity, net of tax expense $269 and $305	901	1,022
Total other comprehensive income (loss)	1,153	1,284
COMPREHENSIVE INCOME	22,415	41,798
Less: Comprehensive income attributable to noncontrolling interests	4,306	4,873
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	18,109	36,925
APS
NET INCOME	28,505	40,160
OTHER COMPREHENSIVE INCOME, NET OF TAX
Pension and other postretirement benefits activity, net of tax expense $269 and $305	820	927
Total other comprehensive income (loss)	820	927
COMPREHENSIVE INCOME	29,325	41,087
Less: Comprehensive income attributable to noncontrolling interests	4,306	4,873
COMPREHENSIVE INCOME ATTRIBUTABLE TO COMMON SHAREHOLDERS	$ 25,019	$ 36,214