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Derivative Instruments And Hedging Activities (Tables) | 12 Months Ended
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Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of balance sheet location and fair value of derivative instruments designated as hedging instruments | The following table presents the balance sheet location and fair value of the portions of our derivative instruments that was designated as hedging instruments (in thousands):
| December 31,
| 2017 |  | 2016
| Balance Sheet Location |  | Fair Value |  | Balance Sheet Location |  | Fair Value
Asset Derivative Instruments: |  |  |  |  |  |  |
Interest rate swaps | Other current assets |  | $ | 311 |  |  | Other current assets |  | $ | — |
Interest rate swaps | Other assets, net |  | 655 |  |  | Other assets, net |  | 451 |
|  |  | $ | 966 |  |  |  |  | $ | 451 |
Liability Derivative Instruments: |  |  |  |  |  |
Foreign exchange contracts | Accrued liabilities |  | $ | 7,492 |  |  | Accrued liabilities |  | $ | 14,056 |
Interest rate swaps | Accrued liabilities |  | — |  |  | Accrued liabilities |  | 751 |
Foreign exchange contracts | Other non-current liabilities |  | 4,975 |  |  | Other non-current liabilities |  | 13,383 |
|  |  | $ | 12,467 |  |  |  |  | $ | 28,190 |
Schedule of balance sheet location and fair value of derivative instruments not designated as hedging instruments | The following table presents the balance sheet location and fair value of the portions of our derivative instruments that was not designated as hedging instruments (in thousands):
| December 31,
| 2017 |  | 2016
| Balance Sheet Location |  | Fair Value |  | Balance Sheet Location |  | Fair Value
Liability Derivative Instruments: |  |  |  |  |  |
Foreign exchange contracts | Accrued liabilities |  | $ | 3,133 |  |  | Accrued liabilities |  | $ | 3,923 |
Foreign exchange contracts | Other non-current liabilities |  | 3,175 |  |  | Other non-current liabilities |  | 6,808 |
|  |  | $ | 6,308 |  |  |  |  | $ | 10,731 |
Schedule of impact of derivative instruments designated as hedging instruments on Accumulated OCI | The following tables present the impact that derivative instruments designated as hedging instruments had on our Accumulated OCI (net of tax) and our consolidated statements of operations (in thousands). We estimate that as of December 31, 2017, $4.7 million of net losses in Accumulated OCI associated with our derivative instruments is expected to be reclassified into earnings within the next 12 months.
| Gain (Loss) Recognized in OCI on Derivative Instruments, Net of Tax (Effective Portion)
| Year Ended December 31,
| 2017 |  | 2016 |  | 2015
Foreign exchange contracts | $ | 9,732 |  |  | $ | 9,397 |  |  | $ | 4,734 |
Interest rate swaps | 782 |  |  | 473 |  |  | (534 | )
| $ | 10,514 |  |  | $ | 9,870 |  |  | $ | 4,200 |
Schedule of loss reclassified from Accumulated OCI into earnings |
| Location of Loss Reclassified from Accumulated OCI into Earnings |  | Loss Reclassified from Accumulated OCI into Earnings (Effective Portion)
|  | Year Ended December 31,
|  | 2017 |  | 2016 |  | 2015
Foreign exchange contracts | Cost of sales |  | $ | (12,300 | ) |  | $ | (10,827 | ) |  | $ | (11,516 | )
Interest rate swaps | Net interest expense |  | (615 | ) |  | (2,024 | ) |  | (2,143 | )
|  |  | $ | (12,915 | ) |  | $ | (12,851 | ) |  | $ | (13,659 | )
Schedule of impact of derivative instruments not designated as hedging instruments on consolidated statement of operations | The following table presents the impact that derivative instruments not designated as hedging instruments had on our consolidated statements of operations (in thousands):
| Location of Gain (Loss) Recognized in Earnings on Derivative Instruments |  | Gain (Loss) Recognized in Earnings on Derivative Instruments
|  | Year Ended December 31,
|  | 2017 |  | 2016 |  | 2015
Foreign exchange contracts | Other income (expense), net |  | $ | 818 |  |  | $ | 1,198 |  |  | $ | (18,014 | )
|  |  | $ | 818 |  |  | $ | 1,198 |  |  | $ | (18,014 | )

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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 for cash flow hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the 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 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the effective portion of the gains and losses on derivative instruments designated (and non-derivative instruments) designated and qualifying in cash flow hedges and net investment hedges that was recognized in other comprehensive income (loss) 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 (b) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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