SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended		19 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Restructuring charges	$ 0	$ 4,551,000	$ 1,509,000	$ 5,962,000
Legal, professional and other costs incurred in response to unsolicited tender offer	0	32,060,000	0	42,125,000	45,607,000
Legal, professional and other costs paid	$ 43,107,000		$ 43,107,000		$ 43,107,000
Antidilutive common stock equivalents		341,000	1,113,000	372,000