Leases (Tables)

12 Months Ended

Dec. 31, 2017

Leases [Abstract]

Schedule of Aggregate Minimum Lease Payments under Non-cancelable Operating Leases

Aggregate minimum lease payments under non-cancelable operating leases with original or remaining lease terms in excess of one year were as follows as of December 31, 2017 (in thousands):

2018	$	69,613
2019		64,556
2020		60,156
2021		56,620
2022		51,071
Thereafter		835,369
Total minimum rental obligations	$	1,137,385