Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Deferred income tax assets:
Net operating loss carryforward and credits	$ 47,529		$ 56,768
Impairment charges	48,311		53,103
Other inventory valuation adjustments	13,819		15,338
Land development reserves	5,270		5,321
Other reserves and accruals	5,028		4,745
Executive incentive compensation	2,352		2,112
Total deferred income tax assets	122,309		137,387
Valuation allowance for deferred tax assets	0		(124,525)
Net deferred income tax assets	122,309	$ 121,200	12,862
Deferred income tax liabilities:
Deferred gain	(6,246)		(7,094)
State taxes	(2,800)		(3,139)
Depreciation	(1,222)		(1,772)
Goodwill	(1,013)
Capitalized expenses	(771)		(857)
Total deferred income tax liabilities	(12,052)		$ (12,862)
Net deferred income tax assets	$ 110,257