Lease Commitments (Tables)

12 Months Ended

Dec. 31, 2017

Leases, Operating [Abstract]

Schedule Of Minimum Future Rental Commitments Under Operating Leases

At December 31, 2017, the minimum future rental commitments under operating leases having non-cancellable lease terms in excess of one year are as follows:

	(In thousands)
2018	$	82,345
2019	74,987
2020	70,654
2021	58,571
2022	51,019
Thereafter	88,626
Total	$	426,202