Debt instrument extension period.

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- Definition

Debt Instrument, Number of Extensions Available

+ References

No definition available.

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- Definition

Line of Credit, Covenant, Maximum Debt to Tangible Net Worth Ratio

+ References

No definition available.

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- Definition

Line of Credit Covenant, Minimum EBITDA to Interest Expense Ratio

+ References

No definition available.

+ Details

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- Definition

Line of Credit Covenant, Minimum Liquidity

+ References

No definition available.

+ Details

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- Definition

Line of Credit, Covenant, Minimum Net Asset Value

+ References

No definition available.

+ Details

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- Definition

Line of Credit, Covenant, Minimum Shareholder's Equity of Gross Capital Proceeds

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Covenant Terms, Minimum Consolidated Tangible Net Worth Covenant, Amount

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Covenant Terms, Minimum Net Income During Four Consecutive Quarters

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Covenant Terms, Total Recourse Indebtedness, Percent

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Estimated Fair Value of Collateral Pledged Percentage

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Margin of Cash Borrowed, Percentage

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Period of Potential Extension

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Threshold Amount for Margin Calls

+ References

No definition available.

+ Details

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- Definition

Number of Subsidiaries, Covenant Terms

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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- Definition

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.

+ References

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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- Definition

Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Glossary Repurchase Agreement Accounted for as a Collateralized Borrowing
-URI http://asc.fasb.org/extlink&oid=49203159

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Borrowings Under Repurchase Agreements - Additional Information (Detail)				1 Months Ended		3 Months Ended	12 Months Ended
	Mar. 31, 2017 USD ($)	Sep. 29, 2016 USD ($) extension	Jan. 26, 2015 USD ($)	Apr. 30, 2014 USD ($)	Sep. 30, 2013 USD ($)	Mar. 31, 2017 USD ($) subsidiary	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Borrowing outstanding	$ 1,477,281,000					$ 1,477,281,000	$ 1,139,803,000
Line of Credit [Member]
Debt Instrument [Line Items]
Borrowing outstanding	1,477,281,000					1,477,281,000	$ 1,139,803,000
Long-term Debt	1,487,235,000					$ 1,487,235,000
Line of Credit [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point						0.98%	0.77%
Line of Credit [Member] \| Deutsche Bank Repurchase Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility	355,200,000	$ 355,200,000				$ 355,200,000	$ 300,000,000
Borrowing outstanding	308,730,000					308,730,000	137,355,000
Number of extensions available \| extension		2
Line of credit facility, potential extension period		1 year
Long-term Debt	308,730,000					308,730,000
Line of Credit [Member] \| Goldman Sachs [Member]
Debt Instrument [Line Items]
Borrowing outstanding	39,001,000					39,001,000	$ 40,657,000
Long-term Debt	39,001,000					$ 39,001,000
Line of Credit [Member] \| Goldman Sachs [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point						3.50%	3.50%
Line of Credit [Member] \| JP Morgan Chase [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility	1,118,000,000					$ 1,118,000,000	$ 943,000,000
Borrowing outstanding	894,031,000					894,031,000	657,452,000
Long-term Debt	894,031,000					894,031,000
Line of Credit [Member] \| UBS [Member]
Debt Instrument [Line Items]
Borrowing outstanding	100,798,000					100,798,000	133,899,000
Long-term Debt	100,798,000					100,798,000
Line of Credit [Member] \| Deutsche Bank [Member]
Debt Instrument [Line Items]
Borrowing outstanding	144,675,000					144,675,000	$ 177,203,000
Long-term Debt	144,675,000					$ 144,675,000
Minimum [Member] \| Line of Credit [Member] \| Deutsche Bank Repurchase Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point						2.57%	2.66%
Minimum [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point						2.27%	2.25%
Minimum [Member] \| Line of Credit [Member] \| Deutsche Bank [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point						1.80%
Maximum [Member] \| Line of Credit [Member] \| Deutsche Bank [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point						2.32%
JP Morgan Facility [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member]
Debt Instrument [Line Items]
Number of indirect wholly owned subsidiaries \| subsidiary						2
General Facility [Member] \| Line of Credit [Member] \| Deutsche Bank Repurchase Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility	300,000,000					$ 300,000,000
Long-term line of credit	300,000,000	$ 300,000,000				300,000,000
General Facility [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member]
Debt Instrument [Line Items]
Long-term line of credit	975,000,000					975,000,000
Goldman Facility [Member] \| Line of Credit [Member] \| Goldman Sachs [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility			$ 52,524
Covenant terms, minimum consolidated tangible net worth, amount			$ 750,000,000
Covenant terms, maximum debt to tangible net worth ratio			3
Covenant terms, minimum liquidity			$ 15,000,000
Line of credit facility, covenant terms, total consolidated indebtedness, percent			5.00%
Line of credit facility, covenant terms, minimum net income during any four consecutive quarters			$ 1
Covenant terms, minimum EBITDA to interest expense ratio			1.5
Goldman Facility [Member] \| Line of Credit [Member] \| Goldman Sachs [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point			3.50%
Amended and Restated JPMorgan Facility [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility	$ 1,118,000,000					1,118,000,000
Debt extension option	1 year
Threshold amount for margin calls (more than)	$ 250,000
Amended and Restated JPMorgan Facility [Member] \| Minimum [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member]
Debt Instrument [Line Items]
Estimated fair value of collateral pledged, percentage	25.00%
Amended and Restated JPMorgan Facility [Member] \| Minimum [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point	2.25%
Amended and Restated JPMorgan Facility [Member] \| Maximum [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member]
Debt Instrument [Line Items]
Estimated fair value of collateral pledged, percentage	80.00%
Amended and Restated JPMorgan Facility [Member] \| Maximum [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis point	4.75%
Repurchase Facility [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility	$ 975,000,000					975,000,000
Asset Specific Financing [Member] \| Line of Credit [Member] \| Deutsche Bank Repurchase Facility [Member]
Debt Instrument [Line Items]
Long-term line of credit	55,200,000	$ 55,200,000				55,200,000
Asset Specific Financing [Member] \| Line of Credit [Member] \| JP Morgan Chase [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility	143,000,000					143,000,000
Long-term line of credit	$ 143,000,000					$ 143,000,000
UBS Facility [Member] \| Line of Credit [Member] \| UBS [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility					$ 133,899
Estimated fair value of collateral pledged, percentage					100.00%
Line of credit facility, potential extension period					1 year
Covenant terms, maximum debt to tangible net worth ratio					3
Line of credit facility, percent margin of cash borrowed					22.50%
Line of credit, covenant, minimum net asset value					$ 500,000
UBS Facility [Member] \| Line of Credit [Member] \| UBS [Member] \| Six Month LIBOR [Member]
Debt Instrument [Line Items]
Basis point					1.55%
DB Facility [Member] \| Line of Credit [Member] \| Deutsche Bank [Member]
Debt Instrument [Line Items]
Line of credit, covenant, minimum shareholder's equity of gross capital Proceeds				50.00%
DB Facility [Member] \| Line of Credit [Member] \| Deutsche Bank [Member] \| Three Month LIBOR [Member]
Debt Instrument [Line Items]
Maximum borrowing under facility				$ 300,000,000
DB Facility [Member] \| Minimum [Member] \| Line of Credit [Member] \| Deutsche Bank [Member] \| Three Month LIBOR [Member]
Debt Instrument [Line Items]
Basis point				1.80%
DB Facility [Member] \| Maximum [Member] \| Line of Credit [Member] \| Deutsche Bank [Member] \| Three Month LIBOR [Member]
Debt Instrument [Line Items]
Basis point				2.32%
Line of credit facility, non-use commitment fee percentage				1.80%