Leases (Tables)

12 Months Ended

Dec. 31, 2016

Leases [Abstract]

Estimated future minimum lease payments for Pinnacle West's and APS's operating leases, excluding purchased power agreements

Estimated future minimum lease payments for Pinnacle West’s and APS’s operating leases, excluding purchased power agreements, are approximately as follows (dollars in thousands):

Year	Pinnacle West Consolidated		APS
2017	$	12,330	$	11,919
2018	10,987		10,690
2019	9,019		8,767
2020	7,688		7,439
2021	5,266		5,020
Thereafter	59,647		57,207
Total future lease commitments	$	104,937	$	101,042