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Acquired Intangible Assets (Calculation Of Acquired Intangibles By Asset Class) (Details) (USD $)
 6 Months Ended
Dec. 31, 2011
years
Nov. 15, 2011
Acquired Finite-Lived Intangible Assets [Line Items]    
Net book value, beginning balance $ 344,995,000  
Amortization expense (68,529,000)  
Adjustments on account of foreign exchange (186,000)  
Net book value, ending balance 381,922,000  
System Solutions Australia Pty Limited (MessageManager) [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 1,766,000  
Operitel Corporation [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 4,601,000  
Acquisition Of Global 360 [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 98,700,000  
Purchase Of Patents [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 575,000 [1]  
Total purchase price to acquire patents   600,000
Initial payment under purchase agreement to acquire patents   200,000
Payment under purchase agreement to acquire patents, after 18 months of purchase 200,000  
Payment under purchase agreement to acquire patents, two years from date of purchase 200,000  
Weighted-average amortization period (in years) for acquired intangible assets 11  
Technology Assets [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Net book value, beginning balance 203,630,000  
Amortization expense (42,043,000)  
Adjustments on account of foreign exchange (83,000)  
Net book value, ending balance 206,020,000  
Weighted-average amortization period (in years) for acquired intangible assets 5  
Technology Assets [Member] | System Solutions Australia Pty Limited (MessageManager) [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 580,000  
Technology Assets [Member] | Operitel Corporation [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 2,761,000  
Technology Assets [Member] | Acquisition Of Global 360 [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 40,600,000  
Technology Assets [Member] | Purchase Of Patents [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 575,000 [1]  
Customer Assets [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Net book value, beginning balance 141,365,000  
Amortization expense (26,486,000)  
Adjustments on account of foreign exchange (103,000)  
Net book value, ending balance 175,902,000  
Weighted-average amortization period (in years) for acquired intangible assets 7  
Customer Assets [Member] | System Solutions Australia Pty Limited (MessageManager) [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 1,186,000  
Customer Assets [Member] | Operitel Corporation [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets 1,840,000  
Customer Assets [Member] | Acquisition Of Global 360 [Member]
    
Acquired Finite-Lived Intangible Assets [Line Items]    
Acquisition of intangible assets $ 58,100,000  
[1] On November 15, 2011, we acquired certain patents. The total purchase price was $0.6 million. Payment terms under the agreement require us to pay $0.2 million upon signing the purchase agreement, $0.2 million 18 months following the purchase date and a final payment of $0.2 million two years following the purchase date. The purchase of these patents is considered to be the acquisition of "defensive intangible assets" and has been accounted for under ASC Topic 350-30-25 "General Intangibles Other than Goodwill", as well as in accordance with ASC Topic 805-50-05 "Acquisition of Assets Rather than a Business". The patents have an amortization period of approximately 11 years.