INCOME TAXES (TAX RATE RECONCILIATION TABLE) (DETAILS) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Effective tax rate reconciliation
Income tax per U.S. federal statutory rate (35%)									$ 35,161	$ 32,224	$ 25,852
State income taxes, net of federal deduction									1,525	210	(345)
Change in valuation allowances									256	3,266	(315)
Foreign income taxes at different rates than the U.S.									(17,824)	(20,529)	(24,507)
Foreign withholding taxes									257	2,504	2,876
Losses in international markets without tax benefits									1,649	779	4,329
Nondeductible compensation under Section 162(m)									817	1,847	1,451
Liabilities for uncertain tax positions									1,435	77	(2,988)
Permanent difference related to foreign exchange gains									(11)	(122)	(13)
(Income)/losses of foreign branch operations									225	1,447	(4,263)
Non-taxable earnings of minority interest									(1,141)	(1,172)	(213)
Foreign dividend less foreign tax credits									(1,428)	(2,587)	(2,935)
Increase in deferred tax liability - branch losses in UK									(75)	(954)	(1,012)
Decrease (increase) to deferred tax tasset - change in state tax rate									(443)	(68)	946
State income tax credits and net operating losses									(142)	615	709
Foreign earnings taxed currently in U.S.									2,696	2,907	0
Other									85	154	367
Total provision for income taxes	$ 8,971	$ 5,778	$ 5,417	$ 2,876	$ 7,995	$ 6,358	$ 3,854	$ 2,391	$ 23,042	$ 20,598	$ (61)