Amount of additional indebtedness the Company is permitted to incur under the credit facility agreement.

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Amount of additional indebtedness the Company is permitted to incur under the credit facility agreement for CLO risk retention investments.

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No definition available.

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Debt Instrument Basis Spread On Base Rate

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Debt instrument redemption price as a percentage of par for a change in control event.

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Economic Income leverage ratio

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Fee-paying assets under management for two successive quarters

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No definition available.

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Notes issuance price as a percentage of par.

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No definition available.

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- Definition

Other liens permitted under credit facility agreement

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No definition available.

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Percent of Investment Financed

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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Face (par) amount of debt instrument at time of issuance.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt Obligations - Additional Information (Detail) $ in Thousands		3 Months Ended
	Nov. 28, 2016 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Borrowings Outstanding		$ 410,612	$ 577,128
Senior Notes
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 400,000
Debt Instrument, Maturity Date		Nov. 20, 2019
Notes Issuance Price		99.417%
Debt Instrument, Interest Rate, Stated Percentage		4.50%
Debt Instrument, Redemption Price, Percentage		100.00%
Debt Instrument, Redemption Price, Change in Control, Percentage		101.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Debt Instrument, Maturity Date		Nov. 20, 2019
Line of Credit Facility, Current Borrowing Capacity		$ 150,000
Weighted-Average Maturity in Years		5 years
Line of Credit Facility, Maximum Borrowing Capacity		$ 225,000
Undrawn Commitment Fee		0.25%
Debt Instrument, Basis Spread over LIBOR, Percentage		2.00%
Fee-Paying Assets Under Management Covenant Amount		$ 22,000,000
Economic Income leverage ratio		4.0
Additional Indebtedness Permitted Under Credit Facility Agreement		$ 150,000
Additional Indebtedness Permitted Under Credit Facility Agreement for CLO Risk Retention Investments		200,000
Other Liens Permitted Under Credit Facility Agreement		$ 50,000
Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Undrawn Commitment Fee		0.25%
Debt Instrument, Basis Spread over LIBOR, Percentage		2.00%
Debt Instrument, Basis Spread over Base Rate, Percentage		1.00%
Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Undrawn Commitment Fee		0.10%
Debt Instrument, Basis Spread over LIBOR, Percentage		1.00%
Debt Instrument, Basis Spread over Base Rate, Percentage		0.00%
Aircraft Credit Facility
Debt Instrument [Line Items]
Borrowings Outstanding		$ 46,400
CLO Investment Loan
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 16,000
Debt Instrument, Maturity Date		Dec. 15, 2023
Debt Instrument, Basis Spread over LIBOR, Percentage	2.23%
Percent of Investment Financed	75.00%
Borrowings Outstanding		$ 16,200