Annual report pursuant to Section 13 and 15(d)

Business and Summary of Significant Accounting Policies (Details)

v2.4.1.9
Business and Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 66,487us-gaap_PropertyPlantAndEquipmentGross $ 53,115us-gaap_PropertyPlantAndEquipmentGross
Accumulated depreciation (34,084)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (31,016)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property and equipment, net 32,403us-gaap_PropertyPlantAndEquipmentNet 22,099us-gaap_PropertyPlantAndEquipmentNet
Computer and office equipment [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment 30,084us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OfficeEquipmentMember
25,221us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OfficeEquipmentMember
Model home furnishings [Member]    
Property, Plant and Equipment [Line Items]    
Gross property and equipment $ 36,403us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember
$ 27,894us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember