Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Unfunded settlements	$ 9,700,000		$ 9,700,000		$ 3,700,000
Litigation Settlement, Expense				30,000,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	7.1	10.3	7.3	10.5
Land, not owned, under option agreements	27,294,000		27,294,000		24,024,000
Liabilities for land, not owned, under option agreements	27,294,000		27,294,000		24,024,000
Residential mortgage loans available-for-sale fair value	221,607,000		221,607,000		287,933,000
Residential mortgage loans available-for-sale aggregate outstanding principal balance	213,200,000		213,200,000		278,100,000
Net gain (loss) from change in fair value	800,000	(2,000,000)	1,600,000	(1,800,000)
Net gains from the sale of mortgages	17,500,000	24,400,000	30,500,000	48,300,000
Maximum [Member]
Variability in future cash flows of derivative instruments in days			75 days
Interest Rate Lock Commitments [Member]
Derivative, Notional Amount	260,300,000		260,300,000		175,700,000
Forward Contracts [Member]
Derivative, Notional Amount	405,000,000		405,000,000		381,500,000
Whole Loan Commitments [Member]
Derivative, Notional Amount	$ 34,100,000		$ 34,100,000		$ 31,700,000