Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands |
Total |
Common Stock |
Additional Paid-in Capital |
Subscriptions Receivable |
Cumulative Distributions in Excess of Retained Earnings |
Accumulated Other Comprehensive (Loss)/Income |
Non-controlling Interests |
|---|---|---|---|---|---|---|---|
| Beginning Balance at Dec. 31, 2014 | $ 394,181 | $ 7 | $ 408,542 | $ (907) | $ (34,347) | $ (7,236) | $ 28,122 |
| Net income | 20,890 | 0 | 0 | 0 | 19,287 | 0 | 1,603 |
| Issuance of shares of common stock | 329,795 | 4 | 330,390 | (599) | 0 | 0 | 0 |
| Other offering costs | (1,796) | 0 | (1,796) | 0 | 0 | 0 | 0 |
| Issuance of membership units | 57,583 | 0 | 0 | 0 | 0 | 0 | 57,583 |
| Distributions declared | (45,271) | 0 | 0 | 0 | (41,851) | 0 | (3,420) |
| Change in fair value of interest rate swap agreements | (3,362) | 0 | 0 | 0 | 0 | (3,104) | (258) |
| Realized loss on interest rate swaps | 0 | ||||||
| Redemption of shares of common stock, value | (3,054) | 0 | (3,054) | 0 | 0 | 0 | 0 |
| Cancellation of shares of common stock | (1,021) | 0 | (1,021) | 0 | 0 | 0 | 0 |
| Adjustment of non-controlling interests | 0 | 0 | 5,848 | 0 | 0 | 0 | (5,848) |
| Ending Balance at Dec. 31, 2015 | 747,945 | 11 | 738,909 | (1,506) | (56,911) | (10,340) | 77,782 |
| Net income | 40,268 | 0 | 0 | 0 | 36,354 | 0 | 3,914 |
| Issuance of shares of common stock | 275,782 | 4 | 284,062 | (8,284) | 0 | 0 | 0 |
| Other offering costs | (1,310) | 0 | (1,310) | 0 | 0 | 0 | 0 |
| Issuance of membership units | 7,190 | 0 | 0 | 0 | 0 | 0 | 7,190 |
| Distributions declared | (76,955) | 0 | 0 | 0 | (69,403) | 0 | (7,552) |
| Change in fair value of interest rate swap agreements | 13,771 | 0 | 0 | 0 | 0 | 12,432 | 1,339 |
| Realized loss on interest rate swaps | 0 | ||||||
| Redemption of shares of common stock, value | (8,154) | 0 | (8,154) | 0 | 0 | 0 | 0 |
| Adjustment of non-controlling interests | 0 | 0 | (4,076) | 0 | 0 | 0 | 4,076 |
| Ending Balance at Dec. 31, 2016 | 998,537 | 15 | 1,009,431 | (9,790) | (89,960) | 2,092 | 86,749 |
| Net income | 59,555 | 0 | 0 | 0 | 54,799 | 0 | 4,756 |
| Issuance of shares of common stock | 313,490 | 4 | 303,711 | 9,775 | 0 | 0 | 0 |
| Other offering costs | (1,380) | 0 | (1,380) | 0 | 0 | 0 | 0 |
| Issuance of membership units | 12,913 | 0 | 0 | 0 | 0 | 0 | 12,913 |
| Distributions declared | (92,768) | 0 | 0 | 0 | (85,119) | 0 | (7,649) |
| Change in fair value of interest rate swap agreements | 4,166 | 0 | 0 | 0 | 0 | 3,834 | 332 |
| Realized loss on interest rate swaps | (873) | 0 | 0 | 0 | 0 | (804) | (69) |
| Conversion of 37 membership units to 37 shares of common stock | 0 | 0 | 2,986 | 0 | 0 | 0 | (2,986) |
| Redemption of shares of common stock, value | (9,439) | 0 | (9,439) | 0 | 0 | 0 | 0 |
| Adjustment of non-controlling interests | 0 | 0 | (3,330) | 0 | 0 | 0 | 3,330 |
| Ending Balance at Dec. 31, 2017 | $ 1,284,201 | $ 19 | $ 1,301,979 | $ (15) | $ (120,280) | $ 5,122 | $ 97,376 |