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Derivative Instruments (Tables) | 3 Months Ended
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Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of information about financial statement effects related to cash flow hedges | The following tables provide additional information about the financial statement effects related to the cash flow hedges for the three months ended March 31, 2019 and 2018:
Derivatives in Cash Flow Hedging Relationships |  | Amount of Loss (Gain) Recognized in OCI on Derivatives (Effective Portion) |  | Location of Gain (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) |  | Amount of Gain (Loss) Recognized from Accumulated OCI into Income (Effective Portion)
| Three Months Ended March 31, |  |  | Three Months Ended March 31,
| 2019 |  | 2018 |  |  | 2019 |  | 2018
|  | (in thousands) |  |  |  | (in thousands)
Interest rate contracts |  | $ | 613 |  |  | $ | (1,031 | ) |  | Interest expense |  | $ | 203 |  |  | $ | (24 | )
Total |  | $ | 613 |  |  | $ | (1,031 | ) |  | Total |  | $ | 203 |  |  | $ | (24 | )

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- Definition Tabular disclosure of gain (loss) on derivative and nonderivative instruments designated and qualifying as cash flow hedge recorded in accumulated other comprehensive income (AOCI) and reclassified into earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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