Quarterly Financial Information - Summary of Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2014 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Operating revenues | $ 21,823 | $ 21,375 | $ 20,688 | $ 19,880 | $ 19,216 | $ 19,014 | $ 18,390 | $ 17,136 | $ 83,766 | $ 73,756 | $ 61,343 |
| Operating expenses | 12,970 | 13,643 | 12,595 | 11,757 | 10,970 | 11,457 | 11,243 | 23,736 | 50,965 | 57,406 | 32,823 |
| Other expense | 6,286 | 7,828 | 7,662 | 7,429 | (2,082) | (7,328) | (5,928) | (6,914) | (29,205) | (22,252) | (26,993) |
| Net income (loss) | 2,567 | (96) | 431 | 694 | 6,164 | 229 | 1,219 | (13,514) | 3,596 | (5,902) | 1,527 |
| Dividends attributable to preferred and senior common stock | (1,284) | (1,286) | (1,284) | (1,247) | (1,220) | (1,160) | (1,133) | (1,123) | (5,101) | (4,636) | (4,394) |
| Net income (loss) available (attributable) to common stockholders | $ 1,283 | $ (1,382) | $ (853) | $ (553) | $ 4,944 | $ (931) | $ 86 | $ (14,637) | $ (1,505) | $ (10,538) | $ (2,867) |
| Net income (loss) available (attributable to common stockholders - basic & diluted | $ 0.06 | $ (0.06) | $ (0.04) | $ (0.03) | $ 0.36 | $ (0.05) | $ 0.01 | $ (0.93) | $ (0.07) | $ (0.61) | $ (0.22) |
| X | ||||||||||
- Definition Business acquisition pro forma dividends attributable to preferred and senior common stock. No definition available.
|
| X | ||||||||||
- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The aggregate revenue from real estate operations during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|