INCOME TAXES (TAX RATE RECONCILIATION TABLE) (DETAILS) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Effective tax rate reconciliation
Income tax per U.S. federal statutory rate (35%)									$ 25,852	$ 32,044	$ 28,689
State income taxes, net of federal deduction									(345)	875	2,079
Change in valuation allowances									(315)	(79)	5,645
Foreign income taxes at different rates than the U.S.									(24,507)	(18,136)	(12,499)
Foreign withholding taxes									2,876	2,177	989
Increase to current/deferred tax assets due to implementation of tax planning strategies											(4,910)
Losses in international markets without tax benefits									4,329	1,094	964
Nondeductible compensation under Section 162(m)									1,451	2,408	1,002
Liabilities for uncertain tax positions									(2,988)	1,875	(2,695)
Permanent difference related to foreign exchange gains									(13)	(45)	(46)
(Income)/losses of foreign branch operations									(4,263)	70	2,340
Non-taxable earnings of minority interest									(213)	390	(603)
Foreign dividend less foreign tax credits									(2,935)	(5,294)	5,344
Increase in deferred tax liability - branch losses in UK									(1,012)	18	2,586
Increase to deferred tax tasset - change in state tax rate									946		(588)
IRS settlement on prior year refund claims									0	(11,700)
Canada CRA tax decision									0	8,680
State income tax credits and net operating losses									709
Other reconciling items									367	(1,098)	134
Total provision for income taxes	$ (2,969)	$ 3,611	$ 1,272	$ (1,853)	$ (3,797)	$ 496	$ (129)	$ (9,849)	$ (61)	$ 13,279	$ 28,431