Contracts and Accounts Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Contracts Receivable:
Costs incurred on fee building projects	$ 40,914	$ 139,677
Estimated earnings	2,023	10,213
Contracts receivable, before collections	42,937	149,890
Less: amounts collected during the period	(29,970)	(132,109)
Total contracts receivable	12,967	17,781
Billed	32	0
Unbilled	12,935	17,781
Other receivables
Escrow receivables	5,118	6,179
Contract and Accounts Receivable	18,085	23,960
Accounts payable related to costs incurred under fee building contracts	$ 12,000	$ 16,700