Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Current:
Current tax	$ 130	$ 206	$ 379	$ 971
Foreign		88		564
State		118		407
Deferred:
Deferred tax (benefit) expense related to basis differences in the entity's Australian properties	1,192	101	1,527	(228)
Deferred tax assets	3,006		3,006		1,992
Deferred tax assets related to properties located in Australia	2,328		2,328		1,414
Deferred tax liabilities	3,601		3,601		1,214
Valuation allowance	$ 598		$ 598		$ 165