Commitments And Contingencies (Details)						0 Months Ended					12 Months Ended
	Dec. 31, 2012 Rialto Distribution [Member] USD ($)	Dec. 31, 2012 Rialto Distribution [Member] NZD	Dec. 31, 2011 Rialto Distribution [Member] USD ($)	Dec. 31, 2011 Rialto Distribution [Member] NZD	Oct. 01, 2005 Rialto Distribution [Member]	Oct. 26, 2011 IRS [Member] USD ($)	Jan. 06, 2011 IRS [Member] USD ($)	Dec. 31, 2012 IRS [Member] USD ($)	Dec. 31, 2011 IRS [Member] USD ($)	Dec. 31, 2012 State [Member] USD ($)	Dec. 31, 2012 Burwood Land [Member] USD ($) acre	Dec. 31, 2012 Burwood Land [Member] AUD acre	May 31, 2010 Burwood Land [Member] acre
Commitments And Contingencies [Line Items]
Ownership percentage in equity method investment	33.30%	33.30%			33.30%
Line of credit facility	$ 1,700,000	2,000,000	$ 1,600,000	2,000,000
Line of credit facility, amount outstanding	703,000	850,000	663,000	850,000
Percentage of claim adjustment conceded to income							70.00%
Unpaid tax of wholly owned subsidiary							20,900,000
Income tax obligation							5,400,000
Reduction of income tax obligation, income tax refund							800,000
Increase in income tax obligation, interest expense							9,300,000
Total federal tax liability							13,900,000
Monthly income tax liability Payment						290,000
Period of monthly income tax liability payments						5 years
Taxes and interest payable								10,000,000	13,500,000
Current taxes payable								3,500,000	3,500,000
Possible obligation										1,400,000
Area of property											50.6	50.6	50.6
Estimated costs associated with removal of contaminated soil											17,700,000	17,100,000
Incurred costs associated with removal of contaminated soil											$ 8,600,000	8,300,000