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Financial Instruments - Derivatives and Hedging (Tables) | 9 Months Ended
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Sep. 30, 2017
Derivative [Line Items] |
Schedule of derivative instruments in Statement of Financial Position, fair value | Detail on the Company’s fair value of interest rate derivatives on a gross and net basis as of September 30, 2017 and December 31, 2016, respectively, is as follows:
|  | Fair Value of Derivative Instruments
Interest rate swaps classified as: |  | September 30, 2017 |  | December 31, 2016
Gross derivative assets |  | $ | 20,171 |  |  | $ | 21,605 |
Gross derivative liabilities |  | — |  |  | — |
Net derivative assets |  | $ | 20,171 |  |  | $ | 21,605 |
Schedule of cash flow hedges included in AOCI | The effective portion of the Company's interest rate swaps that was recognized in the Company’s unaudited Condensed Consolidated Statement of Comprehensive Income for the three and nine months ended September 30, 2017 and 2016 is as follows:
Derivatives in Cash Flow Hedging Relationships (Interest Rate Swaps) |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Change in unrealized gain (loss) on interest rate swaps |  | $ | 132 |  |  | $ | 79 |  |  | $ | (532 | ) |  | $ | (1,704 | )
Amortization of interest rate swaps to interest expense |  | (1,094 | ) |  | 1,242 |  |  | (902 | ) |  | 4,117 |
Change in unrealized gain (loss) on interest rate swaps, net |  | $ | (962 | ) |  | $ | 1,321 |  |  | $ | (1,434 | ) |  | $ | 2,413 |
Cash Flow Hedging [Member] | Designated as Hedging Instrument |
Derivative [Line Items] |
Schedule of interest rate derivatives | Detail of the Company’s interest rate derivatives designated as cash flow hedges outstanding as of September 30, 2017 and December 31, 2016 is as follows:
|  | Number of Instruments |  | Notional Amount
|  | September 30, 2017 |  | December 31, 2016 |  | September 30, 2017 |  | December 31, 2016
Interest Rate Swaps |  | 9 |  | 9 |  | $ | 1,400,000 |  |  | $ | 1,400,000 |

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- Definition Tabular disclosure of the effective portion of gains and losses on derivative instruments (and nonderivative instruments) designated and qualifying in cash flow hedges recorded in accumulated other comprehensive income (loss) during the term of the hedging relationship and reclassified into earnings during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + 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 interest rate derivatives, including, but not limited to, the fair value of the derivatives, statement of financial position location, and statement of financial performance location of these 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 + Details
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