Leases (Tables)

12 Months Ended

Dec. 31, 2015

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
2016	$	9,182	$	8,797
2017	8,557		8,317
2018	7,045		6,880
2019	6,121		5,961
2020	4,835		4,680
Thereafter	61,251		61,101
Total future lease commitments	$	96,991	$	95,736