Investment in Unconsolidated Joint Ventures (HICO Victory Center LP) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Summarized Financial Information, Revenue	$ 109,326	$ 137,107	$ 148,338
HICO Victory Center LP [Member]
Schedule of Equity Method Investments [Line Items]
Land Funding Requirement	75.00%
Future Ownership Percentage of Partner in Joint Venture	90.00%
Equity Method Investment, Summarized Financial Information, Revenue	$ 0	$ 0	$ 0
Hines [Member] | HICO Victory Center LP [Member]
Schedule of Equity Method Investments [Line Items]
Land Funding Requirement	25.00%
Future Ownership Percentage of Partner in Joint Venture	10.00%