Lease Agreements (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Leased Assets [Line Items]
Base rent	$ 32,100,000	$ 32,600,000	$ 31,200,000
Contingent rental expense	1,300,000	1,700,000	1,600,000
Total minimum lease payments	197,909,000
Monthly equipment lease payment		218,000
Equipment lease payments term		60 months
Australia [Member]
Operating Leased Assets [Line Items]
Number of properties leased	16
Number of properties	20
New Zealand [Member]
Operating Leased Assets [Line Items]
Number of properties leased	4
Number of properties	7
United States [Member]
Operating Leased Assets [Line Items]
Number of properties not leased	1
Australia And New Zealand [Member]
Operating Leased Assets [Line Items]
Total minimum lease payments	75,700,000
Minimum [Member]
Operating Leased Assets [Line Items]
Lease term	1 year
Maximum [Member]
Operating Leased Assets [Line Items]
Lease term	37 years
Equipment Lease [Member]
Operating Leased Assets [Line Items]
Lease term		5 years
Total minimum lease payments	$ 13,407,000