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INCOME TAXES (NARRATIVE) (DETAILS) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Sep. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Income Statement Narrative [Line Items] |  |  |  |  |  |  |  |  |
Total deferred tax assets, net | $ 82,988 |  |  |  |  | $ 82,988 | $ 78,654 |  |
Valuation allowances | 10,139 |  |  |  |  | $ 10,139 | 10,721 | $ 10,792 | $ 20,909
Net Change in Valuation Allowance | 1,200 | $ 200 | $ 300 |  |  |  |  |  |
Tax Credit Carryforward, Description |  |  |  |  |  | As of December 31, 2015, domestically, the Company had federal tax credit carry forwards in the amount of $1.6 million that if unused will expire in 2021, $2.2 million that if unused will expire in 2022, $2.2 million that if unused will expire in 2023, $0.9 million that if unused will expire in 2024, and $1.7 million that if unused will expire in 2025. The Company also had state tax credit carry-forwards of $0.3 million that if unused will expire between 2016 and 2023. |  |  |
Cumulative Amount Foregin Earnings Invested Outside United States | 493,400 |  |  |  |  | $ 493,400 |  |  |
Income Tax Holidays Description |  |  |  |  |  | The Company has been granted "Tax Holidays" as an incentive to attract foreign investment by the governments of the Philippines and Costa Rica. Generally, a Tax Holiday is an agreement between the Company and a foreign government under which the Company receives certain tax benefits in that country, such as exemption from taxation on profits derived from export-related activities. In the Philippines, the Company has been granted multiple agreements with an initial period of four years and additional periods for varying years, expiring at various times between 2011 and 2020. |  |  |
Income Tax Holiday Termination Date |  |  |  |  |  | 2011 and 2020 |  |  |
Aggregate Effect on Income Tax Expense for Income Tax Holiday Jurisdictions |  |  |  |  |  | $ 12,200 | $ 20,200 | $ 14,600 |
Diluted Net Income Per Share Effect For Income Tax Holiday Jurisdictions |  |  |  |  |  | $ 0.25 | $ 0.27 | $ 0.28 |
Total Interest and Penalties Accrued Related to Uncertain Tax Positions Recorded in Balance Sheets | 709 |  |  |  |  | $ 709 | $ 132 | $ 77 |
Reserve for Uncertain Tax Benefits, Net |  |  |  |  |  | 3,700 | $ 1,900 |  |
Decrease of Unrecognized Tax Benefits over Next 12 Months | 3,700 |  |  |  |  | 3,700 |  |  |
Income Tax Examination, Penalties and Interest Accrued |  | $ 1,750 |  |  |  |  |  |  |
State Tax Credits And Nol [Member] |  |  |  |  |  |  |  |  |
Income Statement Narrative [Line Items] |  |  |  |  |  |  |  |  |
Net Change in Valuation Allowance |  |  |  |  |  | 2,900 |  |  |
United States [Member] |  |  |  |  |  |  |  |  |
Income Statement Narrative [Line Items] |  |  |  |  |  |  |  |  |
Total deferred tax assets, net | 40,400 |  |  |  |  | $ 40,400 |  |  |
Income Tax Examination Years Under Audit |  |  |  |  |  | 2009, 2011 and 2012 |  |  |
Foreign Jurisdictions [Member] |  |  |  |  |  |  |  |  |
Income Statement Narrative [Line Items] |  |  |  |  |  |  |  |  |
Total deferred tax assets, net | $ 8,400 |  |  |  |  | $ 8,400 |  |  |
Foreign Jurisdictions [Member] | Not Realizable Standard [Member] |  |  |  |  |  |  |  |  |
Income Statement Narrative [Line Items] |  |  |  |  |  |  |  |  |
Net Change in Valuation Allowance |  |  |  |  |  | (1,800) |  |  |
Canada [Member] |  |  |  |  |  |  |  |  |
Income Statement Narrative [Line Items] |  |  |  |  |  |  |  |  |
Tax Adjustments, Settlements, and Unusual Provisions |  |  |  |  | $ 1,200 |  |  |  |
Income Tax Examination Years Under Audit |  |  |  |  | 2009 and 2010, and New Zealand for tax year 2013 |  |  |  |
Argentina [Member] | Not Realizable Standard [Member] |  |  |  |  |  |  |  |  |
Income Statement Narrative [Line Items] |  |  |  |  |  |  |  |  |
Net Change in Valuation Allowance |  |  |  |  |  | $ 4,300 |  |  |
Netherlands [Member] |  |  |  |  |  |  |  |  |
Income Statement Narrative [Line Items] |  |  |  |  |  |  |  |  |
Tax Adjustments, Settlements, and Unusual Provisions |  |  |  | $ 1,300 |  |  |  |  |
Income Tax Examination Years Under Audit |  |  |  | 2010 and 2011 |  |  |  |  |

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