Equity and Noncontrolling Interests - Cumulative Redeemable Preferred Stock (Detail) - $ / shares shares in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Equity And Noncontrolling Interests [Line Items]
Outstanding Shares	868	868
Liquidation Preference	$ 50	$ 50
8-1/2% Series A Cumulative Redeemable Shares [Member]
Equity And Noncontrolling Interests [Line Items]
Outstanding Shares	868
Liquidation Preference	$ 50.00
Optional Redemption Date	Oct. 01, 2026
Redemption Price	$ 50.00
Stated Dividend Yield	8.50%
Approximate Dividend Rate	$ 4.25

Equity and noncontrolling interests.

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- Definition

Preferred Stock Stated Dividend Yield Percentage

+ References

No definition available.

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- Definition

The amount per share used to calculated dividend payments on preferred stock.

+ References

No definition available.

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- Definition

The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
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-Name Regulation S-X (SX)
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-Section 02
-Paragraph 29
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- Definition

Date the preferred stock has been redeemed, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer.

+ References

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-Publisher FASB
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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 210
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-Name Regulation S-X (SX)
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