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Acquisition (Summary Of Purchase Price Allocation) (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Jun. 30, 2012
Allstar Business Solutions Limited [Member]
Business Acquisition [Line Items]    
Trade and other receivables   $ 253,628
Prepaid expenses and other   139
Property and equipment   601
Goodwill   110,553
Other intangible assets 162,500 162,500
Notes and other liabilities assumed   (176,327)
Deferred tax liabilities   (38,931)
Purchase price   $ 312,163