Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Under Operating Leases

Future minimum lease payments under operating leases as of the date shown were as follows:

	December 31, 2017
	(in thousands)
2018	$	53,329
2019	36,816
2020	28,547
2021	22,843
2022	16,650
Thereafter	52,326
Total minimum lease payments	$	210,511

Operating Lease Rental Expense

Rent expense under operating leases was as follows: 

	Year Ended December 31,
	2017			2016			2015
	(in thousands)
Minimum rentals (1)	$	78,961		$	88,182		$	96,579
Contingent rentals	14,294			14,596			14,929
Less: Sublease rentals	(182		)	(187		)	(322		)
Total rent expense	$	93,073		$	102,591		$	111,186

⁽¹⁾ Minimum rentals include all lease payments as well as fixed and variable common area maintenance, parking, and storage fees, which were approximately $10.0 million, $10.2 million, and $9.1 million during the years ended December 31, 2017, 2016, and 2015, respectively.