Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Current:
State	$ 162	$ 107	$ 325	$ 249
Foreign	519		1,382
Current tax	681	107	1,707	249
Deferred:
Foreign	73	(15)	35	335
Deferred tax	73	(15)	35	335
Income tax provision	754	92	1,742	584
Deferred tax assets	1,995		1,995		2,329
Deferred tax assets related to properties located in Australia	1,896		1,896		2,181
Deferred tax liabilities	3,204		3,204		3,643
Valuation allowance	$ 535		$ 535		$ 598