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Interest Rate Derivatives (Tables) | 12 Months Ended
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Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of key terms and fair values of interest rate swap derivatives | The following table sets forth the key terms and fair values of our interest rate swap derivatives, each of which was designated as a cash flow hedge (dollars in thousands):
|  |  |  |  |  |  |  |  |  | Fair Value at
Notional |  |  |  |  |  | Effective |  | Expiration |  | December 31,
Amount |  | Fixed Rate |  | Floating Rate Index |  | Date |  | Date |  | 2017 |  | 2016
$ | 100,000 |  |  | 1.7300 | % |  | One-Month LIBOR |  | 9/1/2015 |  | 8/1/2019 |  | $ | 252 |  |  | $ | (848 | )
13,217 |  | (1) | 1.3900 | % |  | One-Month LIBOR |  | 10/13/2015 |  | 10/1/2020 |  | 213 |  |  | 100 |
100,000 |  |  | 1.9013 | % |  | One-Month LIBOR |  | 9/1/2016 |  | 12/1/2022 |  | 1,046 |  |  | (23 | )
100,000 |  |  | 1.9050 | % |  | One-Month LIBOR |  | 9/1/2016 |  | 12/1/2022 |  | 1,051 |  |  | 48 |
50,000 |  |  | 1.9079 | % |  | One-Month LIBOR |  | 9/1/2016 |  | 12/1/2022 |  | 511 |  |  | 10 |
100,000 |  | (2) | 1.6730 | % |  | One-Month LIBOR |  | 9/1/2015 |  | 8/1/2019 |  | — |  |  | (701 | )
|  |  |  |  |  |  |  |  |  |  |  | $ | 3,073 |  |  | $ | (1,414 | )
(1) The notional amount of this instrument is scheduled to amortize to $12.1 million. (2) We cash settled this derivative and interest accrued thereon for $460,000 on May 1, 2017. Since the hedged transactions associated with this derivative were still probable to occur as of the settlement date, amounts in accumulated other comprehensive loss (“AOCL”) associated with this derivative will be reclassified to interest expense through August 2019.
Schedule of fair value and balance sheet classification of interest rate derivatives | The table below sets forth the fair value of our interest rate derivatives as well as their classification on our consolidated balance sheets (in thousands):
|  |  |  | Fair Value at
|  |  |  | December 31,
Derivatives |  | Balance Sheet Location |  | 2017 |  | 2016
Interest rate swaps designated as cash flow hedges |  | Prepaid expenses and other assets |  | $ | 3,073 |  |  | $ | 158 |
Interest rate swaps designated as cash flow hedges |  | Other liabilities |  | — |  |  | (1,572 | )
Schedule of effect of interest rate derivatives on consolidated statements of operations and comprehensive income | The table below presents the effect of our interest rate derivatives on our consolidated statements of operations and comprehensive income (in thousands):
| For the Years Ended December 31,
| 2017 |  | 2016 |  | 2015
Unrealized gain (loss) recognized in AOCL (effective portion) | $ | 684 |  |  | $ | (2,915 | ) |  | $ | (4,739 | )
Loss reclassified from AOCL into interest expense (effective portion) | (3,216 | ) |  | (4,230 | ) |  | (3,599 | )
Gain (loss) on derivatives recognized in interest expense (ineffective portion) | 323 |  |  | 378 |  |  | (386 | )
Loss reclassified from AOCL into interest expense (ineffective portion) (1) | (88 | ) |  | — |  |  | — |
(1) Represents a loss recognized on certain interest rate swaps from the accelerated reclassification of amounts in AOCL on May 1, 2017, when we concluded that hedged forecasted transactions were probable not to occur.

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5618551-113959 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 + Details
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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41641-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41678-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41638-113959 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579240-113959 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84234895&loc=d3e41620-113959 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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