INCOME TAXES (PROVISION TABLE) (DETAILS) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current provision
Federal current									$ 4,094	$ (699)	$ (320)
State current									1,829	270	150
Foreign current									4,764	13,957	13,876
Total current provision									10,687	13,528	13,706
Deferred provision (benefit)
Federal deferred									(1,895)	10,148	4,674
State deferred									1,085	423	195
Foreign deferred									10,127	(1,057)	2,023
Deferred Income Tax Expense (Benefit), Total									9,317	9,514	6,892
Income Tax Expense (Benefit), Total	$ 6,566	$ 1,192	$ 7,841	$ 4,405	$ 8,971	$ 5,778	$ 5,417	$ 2,876	$ 20,004	$ 23,042	$ 20,598