INCOME TAXES (NARRATIVE) (DETAILS) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Tax Narrative [Line Items]
Income Tax Examination, Penalties and Interest Accrued		$ 1,750		$ 1,750
Total deferred tax assets, net of valuation allowance	$ 48,000		$ 48,000
Valuation allowance on deferred tax assets	10,000		10,000
Deferred tax assets, net of valuation allowance and deferred tax liabilities	$ 44,500		$ 44,500
Effective income tax rate	19.10%	33.60%	23.40%	25.60%
Tax Adjustments, Settlements, and Unusual Provisions	$ 300
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	$ 1,000	$ 1,400	$ 3,400	$ 3,700
Diluted Net Income Per Share Effect For Income Tax Holiday Jurisdictions	$ 0.02	$ 0.03	$ 0.07	$ 0.08
United States [Member]
Income Tax Narrative [Line Items]
Income Tax Years under Audit			2012 to present
Hong Kong rogenSi [Member]
Income Tax Narrative [Line Items]
Income Tax Years under Audit			2014,
Canada [Member]
Income Tax Narrative [Line Items]
Income Tax Years under Audit			2009 and 2010
New Zealand [Member]
Income Tax Narrative [Line Items]
Income Tax Years under Audit			2013