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Derivatives (Tables) | 6 Months Ended
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Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of Foreign Currency Derivative Contracts Outstanding | As of June 30, 2018 and December 31, 2017, we had the following foreign currency derivative contracts outstanding in U.S. dollars (in thousands):
|  | June 30, 2018
Derivative Contracts |  | Notional Amount |  | Contractual Exchange Rate |  | Settlement Date
Canadian dollar |  | $ | 5,904 |  |  | 1.3041 |  | 7/16/2018
Euro |  | 8,598 |  |  | 1.1777 |  | 7/16/2018
Norwegian krone |  | 5,233 |  |  | 8.0266 |  | 7/16/2018
Pound sterling |  | 9,332 |  |  | 1.3331 |  | 7/16/2018
|  | December 31, 2017
Derivative Contracts |  | Notional Amount |  | Contractual Exchange Rate |  | Settlement Date
Canadian dollar |  | $ | 6,226 |  |  | 1.2850 |  | 3/15/2018
Euro |  | 5,326 |  |  | 1.1836 |  | 3/15/2018
Norwegian krone |  | 6,212 |  |  | 8.3704 |  | 3/15/2018
Pound sterling |  | 6,039 |  |  | 1.3419 |  | 3/15/2018
Impact of Derivatives Contracts on Condensed Consolidated Balance Sheets | The following table summarizes the location and fair value amounts of all derivative contracts in the condensed consolidated balance sheets as of June 30, 2018 and December 31, 2017 (in thousands):
Derivatives not Designated as Hedging Instruments |  | Consolidated Balance Sheet Location |  | June 30, 2018 |  | December 31, 2017
Foreign currency contracts |  | Accounts receivable, net |  | $ | 278 |  |  | $ | — |
Foreign currency contracts |  | Accounts payable and accrued liabilities |  | — |  |  | (487 | )
Impact of Derivatives Contracts on Condensed Consolidated Statements of Operations | The following table summarizes the location and amounts of the realized and unrealized gains and losses on derivative contracts in the condensed consolidated statements of operations (in thousands):
|  |  |  | Three Months Ended |  | Six Months Ended
|  |  |  | June 30, |  | June 30,
Derivatives not Designated as Hedging Instruments |  | Location of Gain (Loss) Recognized in Income on Derivative Contracts |  | 2018 |  | 2017 |  | 2018 |  | 2017
Unrealized gain (loss) on foreign currency contracts |  | Other income, net |  | $ | 204 |  |  | $ | (274 | ) |  | $ | 765 |  |  | $ | (730 | )
Realized gain (loss) on foreign currency contracts |  | Other income, net |  | 1,065 |  |  | (807 | ) |  | 125 |  |  | (552 | )
Total net gain (loss) on foreign currency contracts |  |  |  | $ | 1,269 |  |  | $ | (1,081 | ) |  | $ | 890 |  |  | $ | (1,282 | )
Schedule of Derivative Assets, Gross and Net Fair Values | The following table presents the gross and net fair values of our derivatives at June 30, 2018 and December 31, 2017 (in thousands):
|  | Derivative Asset Positions |  | Derivative Liability Positions
|  | June 30, 2018 |  | December 31, 2017 |  | June 30, 2018 |  | December 31, 2017
Gross position - asset / (liability) |  | $ | 278 |  |  | $ | — |  |  | $ | — |  |  | $ | (487 | )
Netting adjustment |  | — |  |  | — |  |  | — |  |  | — |
Net position - asset / (liability) |  | $ | 278 |  |  | $ | — |  |  | $ | — |  |  | $ | (487 | )
Schedule of Derivative Liabilities, Gross and Net Fair Values | The following table presents the gross and net fair values of our derivatives at June 30, 2018 and December 31, 2017 (in thousands):
|  | Derivative Asset Positions |  | Derivative Liability Positions
|  | June 30, 2018 |  | December 31, 2017 |  | June 30, 2018 |  | December 31, 2017
Gross position - asset / (liability) |  | $ | 278 |  |  | $ | — |  |  | $ | — |  |  | $ | (487 | )
Netting adjustment |  | — |  |  | — |  |  | — |  |  | — |
Net position - asset / (liability) |  | $ | 278 |  |  | $ | — |  |  | $ | — |  |  | $ | (487 | )

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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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