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The amount of identifiable intangible assets recognized as of the acquisition date.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Basis of Presentation (Narrative) (Details) $ in Thousands, shares in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2016 USD ($) home lot	Sep. 30, 2017 USD ($) shares	Sep. 30, 2016 USD ($) shares	Sep. 30, 2017 USD ($) shares	Sep. 30, 2016 USD ($) shares	May 03, 2017 lot	Dec. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
Cash paid to acquire business				$ 0	$ 430,458
Number of units in real estate property \| lot						4,600
Antidilutive securities excluded from computation of earnings per share \| shares		0.1	2.3	0.1	2.3
Residential mortgage loans available-for-sale fair value		$ 364,734		$ 364,734			$ 539,496
Residential mortgage loans available-for-sale aggregate outstanding principal balance		352,700		352,700			529,700
Net gain (loss) from change in fair value		700	$ (1,000)	(3,400)	$ 300
Net gains from the sale of mortgages		$ 27,100	$ 30,100	$ 80,100	$ 77,400
Variability in future cash flows of derivative instruments in days				60 days
Income statement impact ASU 2016-09 adoption		5.4
Interest rate lock commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		$ 346,600		$ 346,600			273,900
Forward contracts
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		532,000		532,000			610,000
Whole loan commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		$ 137,800		$ 137,800			157,600
JW Homes (Wieland)
Finite-Lived Intangible Assets [Line Items]
Cash paid to acquire business	$ 430,500
Number of units in real estate property \| lot	7,000
Goodwill	$ 40,400
In Inventory \| JW Homes (Wieland)
Finite-Lived Intangible Assets [Line Items]
Number of units in real estate property \| home	375
Land Option Contracts \| JW Homes (Wieland)
Finite-Lived Intangible Assets [Line Items]
Number of units in real estate property \| lot	1,300
Sales Order Backlog \| JW Homes (Wieland)
Finite-Lived Intangible Assets [Line Items]
Number of units in real estate property \| home	317
Trade Names \| JW Homes (Wieland)
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 18,000
Remaining amortization period	20 years
New Accounting Pronouncement, Early Adoption, Effect \| Retained Earnings \| Accounting Standards Update 2016-09, Excess Tax Benefit Component
Finite-Lived Intangible Assets [Line Items]
Cumulative effect of new accounting principle in period of adoption							18,600
Deferred income tax assets, net							$ 18,600