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Fair Value Measurements - Valuation and Inputs, at FV (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Level 3 inputs
Fair value inputs, quantitative information
Assets valued using quoted or transaction prices in which quantitative unobservable inputs are not developed	$ 309,029	$ 312,427	$ 362,430	$ 138,776	$ 167,905	$ 207,060
Recurring
Fair value inputs, quantitative information
Asset, fair value	754,032		802,498
Liabilities, fair value	(93,851)		(16,810)
Recurring | Level 3 inputs
Fair value inputs, quantitative information
Asset, fair value	401,577		378,830
Assets valued using quoted or transaction prices in which quantitative unobservable inputs are not developed	212,500		247,500
Liabilities, fair value	(92,548)		(16,400)
Loans Receivable | Level 3 inputs
Fair value inputs, quantitative information
Assets valued using quoted or transaction prices in which quantitative unobservable inputs are not developed	9,956	10,722	10,766	13,681	13,618	13,795
Loans, held for sale, at fair value | Level 3 inputs
Fair value inputs, quantitative information
Assets valued using quoted or transaction prices in which quantitative unobservable inputs are not developed	200,863	203,958	231,865
Mortgage backed securities | Level 3 inputs
Fair value inputs, quantitative information
Assets valued using quoted or transaction prices in which quantitative unobservable inputs are not developed	$ 1,666	7,014	$ 1,581	1,714	5,633	25,131
Mortgage backed securities | Recurring | Level 3 inputs | Measurement Input, Servicing Fee Multiple
Fair value inputs, quantitative information
Servicing Asset, Valuation Technique [Extensible List]	Income Approach		Income Approach
Mortgage servicing rights | Level 3 inputs
Fair value inputs, quantitative information
Assets valued using quoted or transaction prices in which quantitative unobservable inputs are not developed	$ 168,653	159,834	$ 120,142	$ 100,820	$ 98,542	$ 76,840
Mortgage servicing rights | Recurring | Level 3 inputs
Fair value inputs, quantitative information
Asset, fair value	168,653		120,142
Investment in unconsolidated joint ventures | Level 3 inputs
Fair value inputs, quantitative information
Assets valued using quoted or transaction prices in which quantitative unobservable inputs are not developed	8,439	8,610	8,894
Investment in unconsolidated joint ventures | Recurring | Level 3 inputs
Fair value inputs, quantitative information
Asset, fair value	$ 8,439		$ 8,894
Investment in unconsolidated joint ventures | Recurring | Level 3 inputs | Income Approach | Measurement Input, Discount Rate
Fair value inputs, quantitative information
Equity Securities, FV-NI, Measurement Input	0.090		0.090
Investment in unconsolidated joint ventures | Recurring | Level 3 inputs | Income Approach | Measurement Input, Discount Rate | Weighted Average
Fair value inputs, quantitative information
Equity Securities, FV-NI, Measurement Input	0.090		0.090
Investments held to maturity | Level 3 inputs
Fair value inputs, quantitative information
Assets valued using quoted or transaction prices in which quantitative unobservable inputs are not developed	$ 9,601	$ 17,053
Investments held to maturity | Recurring | Level 3 inputs
Fair value inputs, quantitative information
Asset, fair value	$ 9,601
Investments held to maturity | Recurring | Level 3 inputs | Income Approach | Measurement Input, Discount Rate
Fair value inputs, quantitative information
Investments, Held To Maturity, Measurement Input	0.120
Investments held to maturity | Recurring | Level 3 inputs | Income Approach | Measurement Input, Discount Rate | Weighted Average
Fair value inputs, quantitative information
Investments, Held To Maturity, Measurement Input	0.120
Derivative instruments | Recurring | Level 3 inputs
Fair value inputs, quantitative information
Asset, fair value	$ 2,399		$ 2,339
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Origination Pull-through Rate | Minimum
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	0.483		0.630
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Origination Pull-through Rate | Maximum
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	1		1
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Origination Pull-through Rate | Weighted Average
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	0.851		0.867
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Servicing Fee Multiple | Minimum
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	0.011		0.004
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Servicing Fee Multiple | Maximum
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	0.065		0.052
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Servicing Fee Multiple | Weighted Average
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	0.047		0.041
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Percentage of Unpaid Principal Balance | Minimum
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	0.003		0.001
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Percentage of Unpaid Principal Balance | Maximum
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	0.032		0.031
Derivative instruments | Recurring | Level 3 inputs | Market Approach | Measurement Input, Percentage of Unpaid Principal Balance | Weighted Average
Fair value inputs, quantitative information
Derivative Asset, Measurement Input	0.016		0.013
Contingent Consideration | Recurring | Level 3 inputs
Fair value inputs, quantitative information
Liabilities, fair value			$ (16,400)
Contingent Consideration | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, EBT Volatility
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input			0.250
Contingent Consideration | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, EBT Volatility | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input			0.250
Contingent Consideration | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Risk Free Interest Rate
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input			0.004
Contingent Consideration | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Risk Free Interest Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input			0.004
Contingent Consideration | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Discount Rate
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input			0.176
Contingent Consideration | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Discount Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input			0.176
Contingent Consideration | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Liability Discount Rate
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input			0.038
Contingent Consideration | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Liability Discount Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input			0.038
Contingent Consideration | Red Stone | Recurring | Level 3 inputs
Fair value inputs, quantitative information
Liabilities, fair value	$ (8,200)
Contingent Consideration | Red Stone | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, EBT Volatility
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.250
Contingent Consideration | Red Stone | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, EBT Volatility | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.250
Contingent Consideration | Red Stone | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Discount Rate
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.040
Contingent Consideration | Red Stone | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Discount Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.040
Contingent Consideration | Red Stone | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Liability Discount Rate
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.065
Contingent Consideration | Red Stone | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Liability Discount Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.065
CER dividends | Mosaic | Recurring | Level 3 inputs
Fair value inputs, quantitative information
Liabilities, fair value	$ (18,475)
CER dividends | Mosaic | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Equity Volatility
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.450
CER dividends | Mosaic | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Equity Volatility | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.450
CER dividends | Mosaic | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Risk Free Interest Rate
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.0214
CER dividends | Mosaic | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Risk Free Interest Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.0214
CER dividends | Mosaic | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Discount Rate
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.0998
CER dividends | Mosaic | Recurring | Level 3 inputs | Monte Carlo Simulation Model | Measurement Input, Discount Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.0998
CER units | Mosaic | Recurring | Level 3 inputs
Fair value inputs, quantitative information
Liabilities, fair value	$ (65,873)
CER units | Mosaic | Recurring | Level 3 inputs | Income Approach and PWERM | Measurement Input, Revaluation Discount Rate | Minimum
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.0850
CER units | Mosaic | Recurring | Level 3 inputs | Income Approach and PWERM | Measurement Input, Revaluation Discount Rate | Maximum
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.1200
CER units | Mosaic | Recurring | Level 3 inputs | Income Approach and PWERM | Measurement Input, Revaluation Discount Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.096
CER units | Mosaic | Recurring | Level 3 inputs | Income Approach and PWERM | Measurement Input, Discount Rate
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.0998
CER units | Mosaic | Recurring | Level 3 inputs | Income Approach and PWERM | Measurement Input, Discount Rate | Weighted Average
Fair value inputs, quantitative information
Contingent Consideration Liability, Measurement Input	0.0998

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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