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DISCONTINUED OPERATIONS - SALE OF U.S. RETAIL WIRELESS BUSINESS (Details) (USD $)	3 Months Ended	6 Months Ended			0 Months Ended	1 Months Ended	3 Months Ended	6 Months Ended		1 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2014	Dec. 31, 2013	Sep. 20, 2013 Alltel Sale AT&T Mobility	Mar. 31, 2014 Alltel Sale AT&T Mobility	Jun. 30, 2013 Alltel Sale AT&T Mobility	Jun. 30, 2014 Alltel Sale AT&T Mobility	Jun. 30, 2013 Alltel Sale AT&T Mobility	Mar. 31, 2015 Alltel Sale AT&T Mobility Subsequent event	Sep. 30, 2014 Alltel Sale AT&T Mobility Subsequent event
SALE OF U.S. RETAIL WIRELESS BUSINESS
Cash proceeds					$ 780,000,000
Working capital adjustments					16,800,000
Total cash proceeds including working capital adjustments					796,800,000
Cash held in escrow					78,000,000
First release of escrowed cash						19,500,000
Restricted cash			58,794,000	39,000,000				58,500,000
Second release of escrowed cash											19,500,000
Third release of escrowed cash										39,000,000
Minority shareholders' interests in sold operations								7,300,000
Revenues and income from discontinued operations
Revenue from discontinued operations							103,446,000		211,483,000
Income from discontinued operations, net of tax expense	3,091,000	7,125,000					3,091,000		7,125,000
Income from discontinued operations, tax expense							$ 1,800,000		$ 4,300,000

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After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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