Other Liabilities (Summary Of Other Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Other Liabilities [Abstract]
Lease liability	$ 5,900	$ 5,855
Security deposit payable	186	174
Other	46	3
Other current liabilities	6,132	6,032
Foreign withholding taxes	6,614	6,480
Straight-line rent liability	9,062	8,893
Environmental reserve	1,656	1,656
Accrued pension	7,141	6,976
Interest rate swap	4,150	5,855
Acquired leases	1,733	2,078
Other payable	904	1,191
Other	575	630
Other liabilities	$ 31,835	$ 33,759