Contractual interest rate for funds borrowed, under the debt agreement.

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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

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

+ 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 210.5-02.28)

-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 29

-Article 5

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- Definition

Debt instrument aggregate principal amount.

+ References

No definition available.

+ Details

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- Definition

Debt instrument outstanding.

+ References

No definition available.

+ Details

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Financing Arrangements - Additional Information (Detail) - USD ($)	Jun. 30, 2015	Jan. 05, 2015	Dec. 31, 2014	Dec. 19, 2014	Jan. 30, 2014
Debt Instrument [Line Items]
Loans outstanding		$ 0
7.50% Subordinated Notes [Member]
Debt Instrument [Line Items]
Principal available					$ 150,000,000
Debt instrument, interest rate, stated percentage					7.50%
Series B Preferred Stock [Member]
Debt Instrument [Line Items]
Preferred stock, shares issued	600,000	600,000	0
Affiliates of KKR [Member] \| Series B Preferred Stock [Member]
Debt Instrument [Line Items]
Preferred stock, shares issued				200,000