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Basis of Presentation (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Assets In-Scope Under Accounting Standards Codification 326		$ 198,000		$ 198,000
Payments for business acquisitions				(83,256)	$ (163,724)
Customer deposits		335,040		335,040					$ 294,427
Contract asset insurance renewals		36,000		36,000					35,100
Residential mortgage loans available-for-sale fair value		394,288		394,288					508,967
Residential mortgage loans available-for-sale aggregate outstanding principal balance		378,000		378,000					494,100
Changes in fair value, gain (loss)		(3,600)	$ (200)	(1,400)	(1,300)
Net gains from the sale of mortgages		66,300	30,400	$ 97,200	54,300
Variability in future cash flows of derivative instruments in days				60 days
Cumulative effect of accounting change				$ (735)
Goodwill impairment		0	$ 0	(20,190)	$ 0
Severance expense		10,300
Retained Earnings
Finite-Lived Intangible Assets [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption								$ (700)
Cumulative effect of accounting change				(735)
Interest rate lock commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		454,400		454,400					255,300
Forward contracts
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		551,000		551,000					518,200
Whole loan commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		$ 225,100		225,100					$ 200,700
Innovative Construction Group [Member]
Finite-Lived Intangible Assets [Line Items]
Payments for business acquisitions	$ (83,300)			(104,000)
Goodwill	48,700
Goodwill impairment				$ (20,200)
Innovative Construction Group [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset acquired	$ 27,800
Intangible asset, amortization period	7 years
Innovative Construction Group [Member] | Trade Name
Finite-Lived Intangible Assets [Line Items]
Intangible asset acquired	$ 1,800
Intangible asset, amortization period	5 years
Forecast [Member] | Innovative Construction Group [Member]
Finite-Lived Intangible Assets [Line Items]
Payments for business acquisitions						$ (10,400)	$ (10,400)

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