Minimum Lease Commitments (Approximate Minimum Annual Gross Rental Payments And Gross Rental Income) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Leases [Abstract]
2017 - Payments	$ 10,598
2018 - Payments	12,299
2019 - Payments	11,730
2020 - Payments	12,196
2021 - Payments	10,686
2022 and thereafter - Payments	109,406
Total minimum future amounts - Payments	166,915
2017 - Receipts	4,986
2018 - Receipts	4,145
2019 - Receipts	2,764
2020 - Receipts	2,155
2021 - Receipts	1,633
2022 and thereafter - Receipts	3,057
Total minimum future amounts - Receipts	$ 18,740