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Basis of Presentation (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2020	Mar. 31, 2020	Mar. 31, 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		$ 227,100
Payments for business acquisitions	$ 83,200		$ 0
Customer deposits		344,973					$ 294,427
Contract asset insurance renewals		35,000
Residential mortgage loans available-for-sale fair value		363,854					508,967
Residential mortgage loans available-for-sale aggregate outstanding principal balance		351,200					494,100
Changes in fair value, gain (loss)		2,200	(1,100)
Net gains from the sale of mortgages		$ 30,900	24,000
Variability in future cash flows of derivative instruments in days		60 days
Cumulative effect of accounting change		$ (735)
Goodwill impairment		(20,190)	$ 0
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		440,600					255,300
Forward contracts
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		609,000					518,200
Whole loan commitments
Finite-Lived Intangible Assets [Line Items]
Derivative, notional amount		114,800					$ 200,700
Innovative Construction Group [Member]
Finite-Lived Intangible Assets [Line Items]
Payments for business acquisitions	(83,200)	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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