FAIR VALUE - Summary of Valuation Techniques and Quantitative Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 39,911,888		$ 38,372,626
Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Terminal capitalization rate (as a percent)			0.06
Direct capitalization rate (as a percent)			0.07
Net operating income growth rate (as a percent)			1.00%
Absorption rate (as a percent)			14.00%
Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Terminal capitalization rate (as a percent)			0.11
Direct capitalization rate (as a percent)			0.08
Net operating income growth rate (as a percent)			29.00%
Absorption rate (as a percent)			33.00%
Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Terminal capitalization rate (as a percent)			0.08	[1]
Direct capitalization rate (as a percent)			0.08	[1]
Net operating income growth rate (as a percent)			11.00%	[1]
Absorption rate (as a percent)			27.00%	[1]
Real estate-oriented investments: | Market approach (value of underlying assets) 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Number of investments that changed valuation technique	1
Real estate-oriented investments: | Discounted Cash Flow and Sales Approach
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Number of investments that changed valuation technique			2
Real estate loan portfolio | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Number of investments that changed valuation technique	1
Level III
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	21,465,845		19,907,890	[2],[3],[4]
Level III | Credit-oriented investments: | Consumer discretionary | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	40,998		163,978	[2],[3],[4],[5]
Level III | Credit-oriented investments: | Consumer discretionary | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	13.00%		7.00%
Level III | Credit-oriented investments: | Consumer discretionary | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	15.00%		15.00%
Level III | Credit-oriented investments: | Consumer discretionary | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	14.00%	[1]	13.00%
Level III | Credit-oriented investments: | Consumer discretionary | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	571,865		233,160	[2],[3],[4],[6],[7]
Level III | Credit-oriented investments: | Consumer discretionary | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	4		5
Level III | Credit-oriented investments: | Consumer discretionary | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	11		12
Level III | Credit-oriented investments: | Consumer discretionary | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	5	[1]	8
Level III | Credit-oriented investments: | Consumer discretionary | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	321,619		673,870	[2],[3],[4],[8]
Level III | Credit-oriented investments: | Consumer discretionary | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	139,002		202,878	[2],[3],[4],[9]
Level III | Credit-oriented investments: | Industrials | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	328,712
Level III | Credit-oriented investments: | Industrials | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	12.00%
Level III | Credit-oriented investments: | Industrials | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	17.00%
Level III | Credit-oriented investments: | Industrials | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	14.00%	[1]
Level III | Credit-oriented investments: | Industrials | Discounted cash flow 2
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			544,628	[2],[3],[4],[5]
Level III | Credit-oriented investments: | Industrials | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	59,349
Level III | Credit-oriented investments: | Industrials | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	4
Level III | Credit-oriented investments: | Industrials | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	6
Level III | Credit-oriented investments: | Industrials | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	6	[1]
Level III | Credit-oriented investments: | Industrials | Market approach (comparable companies 1)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			173,006	[2],[3],[4],[6],[7]
Level III | Credit-oriented investments: | Industrials | Market approach (comparable companies 1) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			5
Level III | Credit-oriented investments: | Industrials | Market approach (comparable companies 1) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			10
Level III | Credit-oriented investments: | Industrials | Market approach (comparable companies 1) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			8
Level III | Credit-oriented investments: | Industrials | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	208,436
Level III | Credit-oriented investments: | Industrials | Recent transaction price 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			419,825	[2],[3],[4],[8]
Level III | Credit-oriented investments: | Industrials | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	840,871
Level III | Credit-oriented investments: | Industrials | Recent market information 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			176,334	[2],[3],[4],[9]
Level III | Credit-oriented investments: | Industrials | Market approach (value of underlying assets) 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	77,550		92,899	[10],[2],[3],[4],[6]
Level III | Credit-oriented investments: | Industrials | Market approach (value of underlying assets) 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	0.9
Underlying asset multiple			0.9
Level III | Credit-oriented investments: | Industrials | Market approach (value of underlying assets) 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	1.1
Underlying asset multiple			1.1
Level III | Credit-oriented investments: | Industrials | Market approach (value of underlying assets) 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	1
Underlying asset multiple			1
Level III | Credit-oriented investments: | Industrials | Discounted Cash Flow and Sales Approach
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	335,270
Level III | Credit-oriented investments: | Industrials | Discounted Cash Flow and Sales Approach | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			8.00%
Discount rate / Market transactions (as a percent)	11.00%
Level III | Credit-oriented investments: | Industrials | Discounted Cash Flow and Sales Approach | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			19.00%
Discount rate / Market transactions (as a percent)	20.00%
Level III | Credit-oriented investments: | Industrials | Discounted Cash Flow and Sales Approach | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			14.00%
Discount rate / Market transactions (as a percent)	14.00%	[1]
Level III | Credit-oriented investments: | Materials
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			173,248	[2],[3],[4],[8]
Level III | Credit-oriented investments: | Materials | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	67,280		63,132	[2],[3],[4],[5]
Level III | Credit-oriented investments: | Materials | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	13.00%		13.00%
Level III | Credit-oriented investments: | Materials | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	14.00%		15.00%
Level III | Credit-oriented investments: | Materials | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	13.00%	[1]	14.00%
Level III | Credit-oriented investments: | Materials | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	437,522		464,236	[2],[3],[4],[6],[7]
Level III | Credit-oriented investments: | Materials | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	6		6
Level III | Credit-oriented investments: | Materials | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	7		8
Level III | Credit-oriented investments: | Materials | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	6	[1]	7
Level III | Credit-oriented investments: | Materials | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	79,020
Level III | Credit-oriented investments: | Other | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	704,430		252,080	[2],[3],[4],[5]
Level III | Credit-oriented investments: | Other | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	8.00%		7.00%
Level III | Credit-oriented investments: | Other | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	15.00%		16.00%
Level III | Credit-oriented investments: | Other | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	11.00%	[1]	14.00%
Level III | Credit-oriented investments: | Other | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	337,406		208,950	[2],[3],[4],[6],[7]
Level III | Credit-oriented investments: | Other | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	6		5
Level III | Credit-oriented investments: | Other | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	7		6
Level III | Credit-oriented investments: | Other | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	7	[1]	6
Level III | Credit-oriented investments: | Other | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	291,925		104,760	[2],[3],[4],[8]
Level III | Credit-oriented investments: | Other | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	400,361		110,103	[2],[3],[4],[9]
Level III | Credit-oriented investments: | Other | Market approach (value of underlying assets) 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			103,269	[10],[2],[3],[4],[6]
Level III | Credit-oriented investments: | Other | Market approach (value of underlying assets) 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			0.9
Level III | Credit-oriented investments: | Other | Market approach (value of underlying assets) 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			1.1
Level III | Credit-oriented investments: | Other | Market approach (value of underlying assets) 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			1
Level III | Credit-oriented investments: | Financials | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			15,055	[2],[3],[4],[5]
Level III | Credit-oriented investments: | Financials | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			9.00%
Level III | Credit-oriented investments: | Financials | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			11.00%
Level III | Credit-oriented investments: | Financials | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			10.00%
Level III | Credit-oriented investments: | Financials | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			106,777	[2],[3],[4],[6]
Level III | Credit-oriented investments: | Financials | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			9
Level III | Credit-oriented investments: | Financials | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			11
Level III | Credit-oriented investments: | Financials | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			10
Level III | Credit-oriented investments: | Financials | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			22,774	[2],[3],[4],[8]
Level III | Credit-oriented investments: | Financials | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			439,281	[2],[3],[4],[9]
Level III | Credit-oriented investments: | Consumer staples | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			317,589	[2],[3],[4],[5]
Level III | Credit-oriented investments: | Consumer staples | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			12.00%
Level III | Credit-oriented investments: | Consumer staples | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			14.00%
Level III | Credit-oriented investments: | Consumer staples | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)			12.00%
Level III | Credit-oriented investments: | Consumer staples | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			283,020	[2],[3],[4],[6]
Level III | Credit-oriented investments: | Consumer staples | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			9
Level III | Credit-oriented investments: | Consumer staples | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			10
Level III | Credit-oriented investments: | Consumer staples | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			9
Level III | Credit-oriented investments: | Consumer staples | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			104,956	[2],[3],[4],[8]
Level III | Credit-oriented investments: | Consumer staples | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			7,424	[2],[3],[4],[9]
Level III | Equity investments: | Consumer discretionary | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	57,560
Level III | Equity investments: | Consumer discretionary | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	12.00%
Level III | Equity investments: | Consumer discretionary | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	14.00%
Level III | Equity investments: | Consumer discretionary | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	13.00%	[1]
Level III | Equity investments: | Consumer discretionary | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	504,550
Level III | Equity investments: | Consumer discretionary | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	4
Level III | Equity investments: | Consumer discretionary | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	11
Level III | Equity investments: | Consumer discretionary | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	9	[1]
Level III | Equity investments: | Consumer discretionary | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	97,834
Level III | Equity investments: | Consumer discretionary | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	140,705
Level III | Equity investments: | Industrials | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,511,811		879,752	[2],[3],[4],[6],[7]
Level III | Equity investments: | Industrials | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	4		4
Level III | Equity investments: | Industrials | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	12		11
Level III | Equity investments: | Industrials | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	8	[1]	8	[1]
Level III | Equity investments: | Industrials | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	745,519		658,463	[2],[3],[4],[8]
Level III | Equity investments: | Industrials | Market approach (value of underlying assets) 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,064,686		1,388	[10],[2],[3],[4],[6]
Level III | Equity investments: | Industrials | Market approach (value of underlying assets) 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	1		0.9
Level III | Equity investments: | Industrials | Market approach (value of underlying assets) 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	1.4		1.1
Level III | Equity investments: | Industrials | Market approach (value of underlying assets) 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	8	[1]	1	[1]
Level III | Equity investments: | Materials | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,014,930	[2],[3],[4],[6],[7]	1,685,758	[2],[3],[4],[6],[7]
Level III | Equity investments: | Materials | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	6		6
Level III | Equity investments: | Materials | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	8		8
Level III | Equity investments: | Materials | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	7	[1]	7	[1]
Level III | Equity investments: | Materials | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	56,064	[2],[3],[4],[8]	81,673	[2],[3],[4],[8]
Level III | Equity investments: | Materials | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,604	[2],[3],[4],[9]
Level III | Equity investments: | Other | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	60,451	[2],[3],[4],[5]	57,560	[2],[3],[4],[5]
Level III | Equity investments: | Other | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	11.00%		13.00%
Level III | Equity investments: | Other | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	12.00%		15.00%
Level III | Equity investments: | Other | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	11.00%	[1]	14.00%	[1]
Level III | Equity investments: | Other | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,052,158	[2],[3],[4],[6],[7]	1,031,830	[2],[3],[4],[6],[7]
Level III | Equity investments: | Other | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	5		5
Level III | Equity investments: | Other | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	11		12
Level III | Equity investments: | Other | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	11	[1]	8	[1]
Level III | Equity investments: | Other | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	21,790	[2],[3],[4],[8]	32,955	[2],[3],[4],[8]
Level III | Equity investments: | Other | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	107,361	[2],[3],[4],[9]	86,828	[2],[3],[4],[9]
Level III | Equity investments: | Other | Market approach (value of underlying assets) 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			82,131	[10],[2],[3],[4],[6]
Level III | Equity investments: | Other | Market approach (value of underlying assets) 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			0.9
Level III | Equity investments: | Other | Market approach (value of underlying assets) 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			1.1
Level III | Equity investments: | Other | Market approach (value of underlying assets) 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			1	[1]
Level III | Equity investments: | Other | Other
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	245,164	[2],[3],[4]	72,969	[2],[3],[4]
Level III | Equity investments: | Financials | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	344,636
Level III | Equity investments: | Financials | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	12
Level III | Equity investments: | Financials | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	14
Level III | Equity investments: | Financials | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	13	[1]
Level III | Equity investments: | Financials | Market approach (comparable companies 1)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			758,887	[10],[2],[3],[4],[6]
Level III | Equity investments: | Financials | Market approach (comparable companies 1) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			10
Level III | Equity investments: | Financials | Market approach (comparable companies 1) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			14
Level III | Equity investments: | Financials | Market approach (comparable companies 1) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple			12
Level III | Equity investments: | Financials | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	185,140		1,412,616	[2],[3],[4],[8]
Level III | Equity investments: | Financials | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			9,630	[2],[3],[4],[9]
Level III | Equity investments: | Financials | Market approach (value of underlying assets) 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	407,823		306,977	[10],[2],[3],[4],[6]
Level III | Equity investments: | Financials | Market approach (value of underlying assets) 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	1		1
Level III | Equity investments: | Financials | Market approach (value of underlying assets) 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	1.2		1.2
Level III | Equity investments: | Financials | Market approach (value of underlying assets) 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	1.1	[1]	1.1
Level III | Equity investments: | Consumer staples | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			1,591,730	[2],[3],[4],[6],[7]
Level III | Equity investments: | Consumer staples | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			5
Level III | Equity investments: | Consumer staples | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			9
Level III | Equity investments: | Consumer staples | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple			8
Level III | Real estate-oriented investments: | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,997,927		1,306,815	[11],[2],[3],[4],[5]
Level III | Real estate-oriented investments: | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	8.00%		8.00%
Terminal capitalization rate (as a percent)	0.06
Direct capitalization rate (as a percent)	0.07
Net operating income growth rate (as a percent)	1.00%
Absorption rate (as a percent)	16.00%
Level III | Real estate-oriented investments: | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	36.00%		28.00%
Terminal capitalization rate (as a percent)	0.15
Direct capitalization rate (as a percent)	0.08
Net operating income growth rate (as a percent)	30.00%
Absorption rate (as a percent)	44.00%
Level III | Real estate-oriented investments: | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	14.00%	[1]	14.00%	[1]
Terminal capitalization rate (as a percent)	0.08	[1]
Direct capitalization rate (as a percent)	0.08	[1]
Net operating income growth rate (as a percent)	9.00%	[1]
Absorption rate (as a percent)	32.00%	[1]
Level III | Real estate-oriented investments: | Market approach (comparable companies)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,230,234	[2],[3],[4],[6],[7]	844,610	[2],[3],[4],[6],[7]
Level III | Real estate-oriented investments: | Market approach (comparable companies) | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	6		6
Level III | Real estate-oriented investments: | Market approach (comparable companies) | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	12		13
Level III | Real estate-oriented investments: | Market approach (comparable companies) | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Earnings multiple	12	[1]	12	[1]
Level III | Real estate-oriented investments: | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	710,888	[2],[3],[4],[8]	674,292	[2],[3],[4],[8]
Level III | Real estate-oriented investments: | Sales approach
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	684,802	[12],[2],[3],[4]	243,791	[12],[2],[3],[4]
Level III | Real estate-oriented investments: | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,169,991	[2],[3],[4]	139,623	[2],[3],[4],[9]
Level III | Real estate-oriented investments: | Recent market information | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Quoted prices / discount (as a percent)	0.00%
Level III | Real estate-oriented investments: | Recent market information | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Quoted prices / discount (as a percent)	6.00%
Level III | Real estate-oriented investments: | Recent market information | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Quoted prices / discount (as a percent)	5.00%	[1]
Level III | Real estate-oriented investments: | Market approach (value of underlying assets) 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	427,452	[10],[2],[3],[4],[6]	737,011	[10],[2],[3],[4],[6]
Level III | Real estate-oriented investments: | Market approach (value of underlying assets) 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	1.3		1.7
Level III | Real estate-oriented investments: | Market approach (value of underlying assets) 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	1.5		1.8
Level III | Real estate-oriented investments: | Market approach (value of underlying assets) 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Underlying asset multiple	1.4	[1]	1.8	[1]
Level III | Real estate loan portfolio | Discounted cash flow 1
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	1,775,455	[11],[2],[3],[4],[5]	390,131	[11],[2],[3],[4],[5]
Level III | Real estate loan portfolio | Discounted cash flow 1 | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	10.00%		14.00%
Level III | Real estate loan portfolio | Discounted cash flow 1 | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	24.00%		20.00%
Level III | Real estate loan portfolio | Discounted cash flow 1 | Weighted average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate (as a percent)	15.00%	[1]	15.00%	[1]
Level III | Real estate loan portfolio | Recent transaction price
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	593,986	[2],[3],[4],[8]	1,245,538	[2],[3],[4],[8]
Level III | Real estate loan portfolio | Recent market information
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value			102,153	[2],[3],[4],[9]
Level III | Other
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Investments, at fair value	$ 13,708		$ 15,547	[2],[3],[4]

[1] The weighted average is based on the fair value of the investments included in the range.

[2] The discount rate is the significant unobservable input used in the fair-value measurement of performing credit-oriented investments in which the consolidated funds do not have a controlling interest in the underlying issuer, as well as certain equity investments and real estate loan portfolios. An increase (decrease) in the discount rate would result in a lower (higher) fair-value measurement.

[3] Multiple of either earnings or underlying assets is the significant unobservable input used in the market approach for the fair-value measurement of distressed credit-oriented investments, credit-oriented investments in which the consolidated funds have a controlling interest in the underlying issuer, equity investments and certain real estate-oriented investments. An increase (decrease) in the multiple would result in a higher (lower) fair-value measurement.

[4] The significant unobservable inputs used in the fair-value measurement of real estate investments utilizing a discounted cash flow analysis can include one or more of the following: discount rate, terminal capitalization rate, direct capitalization rate, net operating income growth rate or absorption rate. An increase (decrease) in a discount rate, terminal capitalization rate or direct capitalization rate would result in a lower (higher) fair-value measurement. An increase (decrease) in a net operating income growth rate or absorption rate would result in a higher (lower) fair-value measurement. Generally, a change in a net operating income growth rate or absorption rate would be accompanied by a directionally similar change in the discount rate.

[5] A discounted cash flow method is generally used to value performing credit-oriented investments in which the consolidated funds do not have a controlling interest in the underlying issuer, as well as certain equity investments, real estate-oriented investments and real estate loan portfolios.

[6] A market approach is generally used to value distressed investments and investments in which the consolidated funds have a controlling interest in the underlying issuer.

[7] Earnings multiples are based on comparable public companies and transactions with comparable companies. The Company typically utilizes multiples of EBITDA; however, in certain cases the Company may use other earnings multiples believed to be most relevant to the investment. The Company typically applies the multiple to trailing-twelve months' EBITDA. However, in certain cases other earnings measures, such as pro forma EBITDA, may be utilized if deemed to be more relevant.

[8] Certain investments are valued based on recent transactions, generally defined as investments purchased or sold within six months of the valuation date. The fair value may also be based on a pending transaction expected to close after the valuation date.

[9] Certain investments are valued using quoted prices for the subject or similar securities. Generally, investments valued in this manner are classified as Level III because the quoted prices may be indicative in nature for securities that are in an inactive market, may be for similar securities, or may require adjustment for investment-specific factors or restrictions.

[10] A market approach using the value of underlying assets utilizes a multiple, based on comparable companies, of underlying assets or the net book value of the portfolio company. The Company typically obtains the value of underlying assets from the underlying portfolio company's financial statements or from pricing vendors. The Company may value the underlying assets by using prices and other relevant information from market transactions involving comparable assets.

[11] The discounted cash flow model for certain real estate-oriented investments and certain real estate loan portfolios contains a sell-out analysis. In these cases, the discounted cash flow is based on the expected timing and prices of sales of the underlying properties. The Company's determination of the sales prices of these properties typically includes consideration of prices and other relevant information from market transactions involving comparable properties.

[12] The sales approach uses prices and other relevant information generated by market transactions involving comparable assets. The significant unobservable inputs used in the sales approach generally include adjustments to transactions involving comparable assets or properties, adjustments to external or internal appraised values, and the Company's assumptions regarding market trends or other relevant factors.