Variable Interests - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jan. 20, 2010
Variable Interest Entity [Line Items]
Senior debt in the aggregate principal amount					$ 300,000
Imputed interest rate			9.00%
Face value of Subordinated Note	73,700		73,700
Subordinated Note, maturity date	2026-03		2026-03
Advances to 2009 Entity	0	200	0	200
Carrying value	$ 19,000		$ 19,000

Total advances made in accordance with a note arrangement.

No definition available.

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- Definition

The imputed interest rate on a non-interest bearing note receivable.

+ References

No definition available.

+ Details

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- Definition

Maturity date for note receivable held by the reporting entity

+ References

No definition available.

+ Details

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- Definition

The amount of Senior Debt issued by a variable interest entity in which the Reporting Entity holds a variable interest.

+ References

No definition available.

+ Details

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- Definition

An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date(s) more than one year from the balance sheet date. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

+ 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 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

+ Details

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- Definition

An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date more than one year from the balance sheet date, net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

+ References

+ Details

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- Details

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