Fair Value Measurement - Quantitative Information about Partnership's Level III Inputs (Details) $ in Millions	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($)	Dec. 31, 2022 $ / shares	Dec. 31, 2022
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	$ 7,962.9	$ 7,577.8
Fair value of liabilities	6,298.6	5,494.8
Level III
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	7,379.4	6,983.9
Fair value of liabilities	6,298.6	5,491.6
Level III | Investments of Consolidated Funds:
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	6,762.2	6,378.4
Level III | Equity securities | Consensus Pricing
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	3.3	3.1
Level III | Equity securities | Discounted Cash Flow
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	322.1	363.5
Level III | Equity securities | Other
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	7.8	64.0
Level III | Equity securities two | Discounted Cash Flow
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	44.4
Level III | Bonds
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets		594.9
Level III | Bonds | Consensus Pricing
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	522.5
Level III | Loans
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets		5,043.4
Level III | Loans | Consensus Pricing
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	5,829.3	11.1
Level III | Loans | Discounted Cash Flow
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	11.0	11.8
Level III | Loan two | Consensus Pricing
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets		37.4
Level III | Loan two | Discounted Cash Flow
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	9.4	248.7
Level III | Loan three | Other
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	12.4	0.5
Level III | Senior secured notes
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets		462.1
Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	472.2
Level III | Senior secured notes | Other
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of liabilities	6,090.1
Level III | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets		64.0
Fair value of liabilities		188.3
Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	59.4
Fair value of liabilities	190.0
Level III | Subordinated notes and preferred shares | Other
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	1.0
Fair value of liabilities	18.5
Level III | BDC preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets		76.9
Level III | BDC preferred shares | Market Yield Analysis
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	81.7
Level III | Aviation subordinated notes
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets		2.5
Level III | Aviation subordinated notes | Discounted Cash Flow
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets	$ 2.9
Level III | Investments in CLOs and other
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of assets		6,983.9
Level III | Senior secured notes
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value of liabilities		$ 5,303.3
Indicative Quotes | Level III | Discounted Cash Flow with Consensus Pricing | Minimum | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.16			0.21
Indicative Quotes | Level III | Discounted Cash Flow with Consensus Pricing | Maximum | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	1.03			0.96
Indicative Quotes | Level III | Discounted Cash Flow with Consensus Pricing | Weighted Average | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.41			0.38
Indicative Quotes | Level III | Equity securities | Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent) | $ / shares	0.00		0.00
Indicative Quotes | Level III | Equity securities | Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent) | $ / shares	208.38		4.73
Indicative Quotes | Level III | Equity securities | Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent) | $ / shares	0.11		0.18
Indicative Quotes | Level III | Bonds | Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.30			0.46
Indicative Quotes | Level III | Bonds | Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	1.05			1.05
Indicative Quotes | Level III | Bonds | Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.90			0.88
Indicative Quotes | Level III | Loans | Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0		0.91	0
Indicative Quotes | Level III | Loans | Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	1.02		0.91	1
Indicative Quotes | Level III | Loans | Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.95		0.91	0.91
Indicative Quotes | Level III | Loan two | Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)				0.97
Indicative Quotes | Level III | Loan two | Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)				0.98
Indicative Quotes | Level III | Loan two | Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)				0.97
Indicative Quotes | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.72			0.67
Indicative Quotes | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	1.01			1
Indicative Quotes | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.96			0.93
Indicative Quotes | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.06			0
Indicative Quotes | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.90			0.82
Indicative Quotes | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.40			0.40
Discount Rate | Level III | Discounted Cash Flow with Consensus Pricing | Minimum | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.14			0.15
Discount Rate | Level III | Discounted Cash Flow with Consensus Pricing | Maximum | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.30			0.25
Discount Rate | Level III | Discounted Cash Flow with Consensus Pricing | Weighted Average | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.21			0.20
Discount Rate | Level III | Equity securities | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.10			0.10
Discount Rate | Level III | Equity securities | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.11			0.10
Discount Rate | Level III | Equity securities | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.10			0.10
Discount Rate | Level III | Equity securities two | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.10
Discount Rate | Level III | Equity securities two | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.10
Discount Rate | Level III | Equity securities two | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.10
Discount Rate | Level III | Loans | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.07		0
Discount Rate | Level III | Loans | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.16		0.09
Discount Rate | Level III | Loans | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.15		0.01
Discount Rate | Level III | Loan two | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.17			0.07
Discount Rate | Level III | Loan two | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.17			0.10
Discount Rate | Level III | Loan two | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.17			0.08
Discount Rate | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.11			0.15
Discount Rate | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.40			0.25
Discount Rate | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.21			0.20
Discount Rate | Level III | BDC preferred shares | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent) | $ / shares			0.11
Discount Rate | Level III | BDC preferred shares | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent) | $ / shares			0.11
Discount Rate | Level III | BDC preferred shares | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent) | $ / shares			0.11
Discount Rate | Level III | Aviation subordinated notes | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.21			0.21
Discount Rate | Level III | Aviation subordinated notes | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.21			0.21
Discount Rate | Level III | Aviation subordinated notes | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.21			0.21
Terminal Growth Rate | Level III | Equity securities | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0			0
Terminal Growth Rate | Level III | Equity securities | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.07			0.07
Terminal Growth Rate | Level III | Equity securities | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.05			0.05
Terminal Growth Rate | Level III | Equity securities two | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.07
Terminal Growth Rate | Level III | Equity securities two | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.07
Terminal Growth Rate | Level III | Equity securities two | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.07
EBITDA Multiple | Level III | Equity securities | Comparable Multiple | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	12.7			12.7
EBITDA Multiple | Level III | Equity securities | Comparable Multiple | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	12.7			12.7
EBITDA Multiple | Level III | Equity securities | Comparable Multiple | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	12.7			12.7
TCF Multiple | Level III | Equity securities | Comparable Multiple | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	24.3			23.8
TCF Multiple | Level III | Equity securities | Comparable Multiple | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	24.3			23.8
TCF Multiple | Level III | Equity securities | Comparable Multiple | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	24.3			23.8
TCF Multiple | Level III | Equity securities two | Comparable Multiple | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	24.3
TCF Multiple | Level III | Equity securities two | Comparable Multiple | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	24.3
TCF Multiple | Level III | Equity securities two | Comparable Multiple | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	24.3
Discount Margins | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.0139			0.0170
Discount Margins | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.1600			0.1800
Discount Margins | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.0319			0.0386
Constant Prepayment Rate | Level III | Loans | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.08
Constant Prepayment Rate | Level III | Loans | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.08
Constant Prepayment Rate | Level III | Loans | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.08
Default Rates | Level III | Discounted Cash Flow with Consensus Pricing | Minimum | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.02			0.02
Default Rates | Level III | Discounted Cash Flow with Consensus Pricing | Maximum | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.02			0.03
Default Rates | Level III | Discounted Cash Flow with Consensus Pricing | Weighted Average | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.02			0.03
Default Rates | Level III | Loans | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.01
Default Rates | Level III | Loans | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.01
Default Rates | Level III | Loans | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.01
Default Rates | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.02			0.02
Default Rates | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.02			0.03
Default Rates | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.02			0.02
Default Rates | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.01			0.02
Default Rates | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.02			0.03
Default Rates | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.02			0.02
Recovery Rates | Level III | Discounted Cash Flow with Consensus Pricing | Minimum | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.60			0.50
Recovery Rates | Level III | Discounted Cash Flow with Consensus Pricing | Maximum | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.60			0.70
Recovery Rates | Level III | Discounted Cash Flow with Consensus Pricing | Weighted Average | Subordinated notes and preferred shares
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Liabilities, measurement input (percent)	0.60			0.60
Recovery Rates | Level III | Loans | Discounted Cash Flow | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0
Recovery Rates | Level III | Loans | Discounted Cash Flow | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0
Recovery Rates | Level III | Loans | Discounted Cash Flow | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0
Recovery Rates | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.60			0.50
Recovery Rates | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.60			0.70
Recovery Rates | Level III | Senior secured notes | Discounted Cash Flow with Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.60			0.60
Recovery Rates | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.60			0.50
Recovery Rates | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.60			0.70
Recovery Rates | Level III | Subordinated notes and preferred shares | Discounted Cash Flow with Consensus Pricing | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.60			0.60
Market Yield Analysis | Level III | BDC preferred shares | Market Yield Analysis | Minimum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.11
Market Yield Analysis | Level III | BDC preferred shares | Market Yield Analysis | Maximum
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.11
Market Yield Analysis | Level III | BDC preferred shares | Market Yield Analysis | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Assets, measurement input (percent)	0.11