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Equity and Mezzanine Equity - Summary of Changes in Stockholders' Equity (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance |  |  | $ 213,183 |  |
Redemption of Series D preferred stock, net | $ (2,141) |  |  |  |
Comprehensive income | (720) | $ (481) | 1,704 | $ (3,009) |
Net income | 2,121 | 965 | 2,160 | 3,225 |
Stockholders' equity, ending balance | 203,386 |  | 203,386 |  |
Total Equity | 204,724 | 208,633 | 204,724 | 208,633 | $ 216,037
Senior Common Stock |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance | 1 | 1 | 1 | 1 |
Stockholders' equity, ending balance | 1 | 1 | 1 | 1 |
Series F Preferred Stock |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance | 0 | 0 | 0 | 0 |
Stockholders' equity, ending balance | 0 | 0 | 0 | 0 |
Common Stock |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance | 36 | 34 | 35 | 32 |
Issuance of common stock and preferred stock, net |  |  | 1 | 2 |
Stockholders' equity, ending balance | 36 | 34 | 36 | 34 |
Additional Paid in Capital |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance | 639,053 | 599,232 | 626,533 | 571,205 |
Issuance of common stock and preferred stock, net | 9,099 | 508 | 20,411 | 28,438 |
Redemption of OP Units |  |  | 4,812 |  |
Adjustment to OP Units held by Non-controlling OP Unitholders resulting from changes in ownership of the Operating Partnership | (40) | 1 | (3,644) | 98 |
Stockholders' equity, ending balance | 648,112 | 599,741 | 648,112 | 599,741 |
Accumulated Other Comprehensive Income |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance | (1,921) | (4,654) | (4,345) | (2,126) |
Comprehensive income | (720) | (481) | 1,704 | (3,009) |
Stockholders' equity, ending balance | (2,641) | (5,135) | (2,641) | (5,135) |
Distributions in Excess of Accumulated Earnings |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance | (425,422) | (374,259) | (409,041) | (360,978) |
Redemption of Series D preferred stock, net | (2,141) |  | (2,141) |  |
Distributions declared to common, senior common, and preferred stockholders | (16,701) | (15,634) | (33,163) | (31,184) |
Net income | 2,142 | 993 | 2,223 | 3,262 |
Stockholders' equity, ending balance | (442,122) | (388,900) | (442,122) | (388,900) |
Total Stockholders' Equity |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance | 211,747 | 220,354 | 213,183 | 208,134 |
Issuance of common stock and preferred stock, net | 9,099 | 508 | 20,412 | 28,440 |
Redemption of OP Units |  |  | 4,812 |  |
Redemption of Series D preferred stock, net |  |  | (2,141) |  |
Distributions declared to common, senior common, and preferred stockholders | (16,701) | (15,634) | (33,163) | (31,184) |
Comprehensive income | (720) | (481) | 1,704 | (3,009) |
Adjustment to OP Units held by Non-controlling OP Unitholders resulting from changes in ownership of the Operating Partnership | (40) | 1 | (3,644) | 98 |
Net income | 2,142 | 993 | 2,223 | 3,262 |
Stockholders' equity, ending balance | 203,386 | 205,741 | 203,386 | 205,741 |
Non-Controlling Interest |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stockholders' equity, beginning balance | 1,416 | 3,110 | 2,854 | 2,903 |
Redemption of OP Units |  |  | (4,812) |  |
Distributions declared to common, senior common, and preferred stockholders | (97) | (189) | (285) | (378) |
Issuance of Non-controlling OP Units as consideration in real estate acquisitions, net |  |  |  | 502 |
Adjustment to OP Units held by Non-controlling OP Unitholders resulting from changes in ownership of the Operating Partnership | 40 | (1) | 3,644 | (98) |
Net income | (21) | (28) | (63) | (37) |
Stockholders' equity, ending balance | $ 1,338 | $ 2,892 | $ 1,338 | $ 2,892 |

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http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 10 -Section 65 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 105 -SubTopic 10 -Section 65 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 105 -SubTopic 10 -Section 65 -Paragraph 6 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=123454820&loc=SL4568740-111683 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 65 -Paragraph 1 -Subparagraph (e)(3) -URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011 Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 45 -Paragraph 5 -Subparagraph (b) -URI 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-URI http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 65 -Paragraph 8 -Subparagraph (d)(3) -URI http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (f)(2) -URI 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