Mandatorily Redeemable Term Preferred Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions |
1 Months Ended | 12 Months Ended |
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Feb. 29, 2012 |
Dec. 31, 2017 |
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| Class of Stock [Line Items] | ||
| Preferred stock mandatory redemption date | Jan. 31, 2017 | |
| Write -off of unamortized offering costs | $ 0.2 | |
| Series C Preferred Stock | ||
| Class of Stock [Line Items] | ||
| Redeemable preferred stock, dividend rate percentage (as percent) | 7.125% | |
| Mandatorily Redeemable Preferred Stock | ||
| Class of Stock [Line Items] | ||
| Redeemable preferred stock, shares issued (in shares) | 1,540,000 | |
| Redeemable preferred stock, par value (in dollars per share) | $ 0.001 | |
| Public offering price (in dollars per share) | $ 25.00 | |
| Gross proceeds of the offering | $ 38.5 | |
| Net proceeds, after deducting offering expenses | $ 36.7 |
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- Definition Net proceeds after deducting offering expenses. No definition available.
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- Definition Preferred Stock, Write Off Of Offering Costs No definition available.
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- Definition Public offering price. No definition available.
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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. No definition available.
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- Definition The percentage rate used to calculate dividend payments on preferred stock. No definition available.
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Date the preferred stock has been redeemed, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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