Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

The redemption (or callable) amount of currently redeemable preferred stock. Includes amounts representing dividends not currently declared or paid but which will be payable under the redemption features or for which ultimate payment is solely within the control of the issuer.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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No definition available.

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Subsequent Event - Additional Information (Detail) - USD ($) $ in Thousands	Oct. 30, 2015	Nov. 06, 2015	Sep. 30, 2015	Dec. 31, 2014
Subsequent Event [Line Items]
Preferred stock, shares outstanding			14,595	14,595
Subsequent Event [Member] \| Fixed Rate Cumulative Perpetual Preferred Stock, Series A [Member]
Subsequent Event [Line Items]
Preferred stock, shares outstanding		13,900
Preferred Stock, redemption amount		$ 13,900
Subsequent Event [Member] \| Fixed Rate Cumulative Perpetual Preferred Stock, Series B [Member]
Subsequent Event [Line Items]
Preferred stock, shares outstanding		695
Preferred Stock, redemption amount		$ 695
Subsequent Event [Member] \| 6.75% Fixed Interest Subordinate Term Note [Member]
Subsequent Event [Line Items]
Aggregate principal amount	$ 5,000
Fixed interest rate	6.75%
Subsequent Event [Member] \| Unsecured Debt [Member]
Subsequent Event [Line Items]
Debt instrument maturity date	Oct. 01, 2025
Debt instrument prepay date	Oct. 30, 2020