| Interest expense and finance cost |
| | For the Year Ended December 31, 2018 | | | For the Year Ended December 31, 2017 | | | For the Year Ended December 31, 2016 | | Interest expense | | $ | 131,131 | | | $ | 115,099 | | | $ | 107,787 | | Amortization and write-off of deferred financing costs | | | 7,880 | | | | 6,391 | | | | 5,653 | | Other | | | 109 | | | | 121 | | | | 199 | | Interest expense and finance cost | | $ | 139,120 | | | $ | 121,611 | | | $ | 113,639 | |
|