Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2012 acre
Commitment and Contingencies Disclosure [Line Items]
Acres of land subject to water contracts	5,488
Estimated future minimum annual payments	$ 2,500,000
Acres of land related to land liens	1,457
Letter of credit period	2 years
Letter of credit renewal period	2 years
Special taxes paid	606,000
Standby letter of credit [Member]
Commitment and Contingencies Disclosure [Line Items]
Letters of Credit Outstanding, Amount	5,426,000
Annual cost related to letter of credit	83,000
West CFD [Member]
Commitment and Contingencies Disclosure [Line Items]
Acres of land related to land liens	420
Bond debt sold by TRPFFA	30,000,000
Additional bond debt authorized to be sold in future	0
Additional reimbursement funds	0
East CFD [Member]
Commitment and Contingencies Disclosure [Line Items]
Acres of land related to land liens	1,931
Letters of Credit Outstanding, Amount	39,750,000
Additional bond debt authorized to be sold in future	80,250,000
Additional reimbursement funds	$ 22,776,000