SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)	3 Months Ended		12 Months Ended	0 Months Ended	3 Months Ended	9 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2013	Sep. 20, 2013 Alltel sale AT&T Mobility	Dec. 31, 2013 Alltel sale AT&T Mobility	Sep. 30, 2013 Alltel sale AT&T Mobility
Pending Sale Of U.S. Retail Wireless Business
Consideration for sale of operations in all-cash transaction				$ 780,000,000
Working capital				16,828,000
Gain on sale of assets	$ 1,905,000	$ 305,197,000	$ 307,102,000	$ 307,102,000	$ 1,900,000	$ 305,200,000