Commitments And Contingencies (Details) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Commitments And Contingencies [Line Items]
Total debt of unconsolidated joint ventures and entities	$ 666,000	$ 703,000
Share of unconsolidated debt, based on ownership percentage	222,000	234,000
Amount of financing required for equipment lease		15,500,000
Australia [Member]
Commitments And Contingencies [Line Items]
Cost to purchase equipment	9,000,000
New Zealand [Member]
Commitments And Contingencies [Line Items]
Cost to purchase equipment	$ 2,800,000