EQUITY (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total equity, beginning of period	$ 1,506,297	$ 1,402,452	$ 1,185,516
Total other comprehensive income/(loss)	(10,727)	6,853	4,274
Total equity, end of period	1,741,388	1,506,297	1,402,452
Accumulated Other Comprehensive Income/(Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total equity, beginning of period	3,955	(2,898)	(7,172)
Other comprehensive (loss)/income before reclassifications	(12,595)	7,278
Amounts reclassified from accumulated other comprehensive income/(loss), net of tax	1,868	(425)
Total other comprehensive income/(loss)	(10,727)	6,853
Total equity, end of period	(6,772)	3,955	(2,898)
Unrealized Gain/(Loss) On Marketable Securities, Net Of Tax [Member] | Accumulated Other Comprehensive Income/(Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total equity, beginning of period	5,001	3,599
Other comprehensive (loss)/income before reclassifications	(7,922)	1,827
Amounts reclassified from accumulated other comprehensive income/(loss), net of tax	1,868	(425)
Total other comprehensive income/(loss)	(6,054)	1,402
Total equity, end of period	(1,053)	5,001	3,599
Foreign Currency Translation Adjustments [Member] | Accumulated Other Comprehensive Income/(Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total equity, beginning of period	(1,046)	(6,497)
Other comprehensive (loss)/income before reclassifications	(4,673)	5,451
Total other comprehensive income/(loss)	(4,673)	5,451
Total equity, end of period	$ (5,719)	$ (1,046)	$ (6,497)