Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Income statement impact ASU 2016-09 adoption

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

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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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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For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Represents mortgage loans held in inventory primarily for sale to others (third parties, businesses, legal entities) in the ordinary course of business.

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Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Basis of Presentation (Narrative) (Details) $ in Thousands, shares in Millions	1 Months Ended	3 Months Ended
	Jan. 31, 2016 USD ($) home lot	Mar. 31, 2017 USD ($) shares	Mar. 31, 2016 USD ($) shares	Dec. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
Cash paid to acquire business		$ 0	$ 430,011
Antidilutive securities excluded from computation of earnings per share (shares) \| shares		0.1	2.3
Residential mortgage loans available-for-sale fair value		$ 345,379		$ 539,496
Residential mortgage loans available-for-sale aggregate outstanding principal balance		332,900		529,700
Net gain (loss) from change in fair value		(2,000)	$ 1,000
Net gains from the sale of mortgages		$ 25,300	$ 21,500
Variability in future cash flows of derivative instruments in days		90 days
Income statement impact ASU 2016-09 adoption		2.8
Interest rate lock commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		$ 354,700		273,900
Forward contracts
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		555,000		610,000
Whole loan commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		$ 102,200		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 [Member] \| Retained Earnings \| Accounting Standards Update 2016-09, Excess Tax Benefit Component [Member]
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