Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		1 Months Ended	3 Months Ended		6 Months Ended			3 Months Ended	6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2011 Worldwide Digital Business, a reporting unit	Jun. 30, 2012 Worldwide Digital Business, a reporting unit	Jun. 30, 2011 Worldwide Digital Business, a reporting unit	Jun. 30, 2012 Worldwide Digital Business, a reporting unit	Jun. 30, 2011 Worldwide Digital Business, a reporting unit	Jun. 02, 2011 Worldwide Digital Business, a reporting unit	Jun. 30, 2011 New Zealand Business	Jun. 30, 2011 New Zealand Business	Oct. 03, 2011 New Zealand Business	Jun. 30, 2012 Italian Business	Jun. 30, 2011 Italian Business	Jun. 30, 2012 Italian Business	Jun. 30, 2011 Italian Business
Discontinued operation disclosures
Proceeds from divestiture of business					$ 395,400
Initial purchase price										380,000			10,000
Impairment charge included in income (loss) from discontinued operations											4,900
Preliminary working capital adjustment										15,400
Transaction costs								7,387
Inducements payable to Autonomy								11,075
Gain on Sale of Discontinued Operations							245,654		245,654					(1,885)		(1,885)
Gain (Loss) on Sale of Discontinued Operations, Net of Tax	(1,885)	193,349	(1,885)	193,349			193,349		193,349					(1,885)		(1,885)
Cumulative translation adjustment reclassified from accumulated other comprehensive items, net and reduced the gain on sale														383
Summarized results of operations
Total Revenues							32,521		79,199		2,160	4,143			4,338	2,138	8,621
(Loss) Income Before (Benefit) Provision for Income Taxes of Discontinued Operations						(377)	(16,812)	378	(20,398)		(4,876)	(4,948)		(262)	(2,009)	(6,386)	(6,103)
(Benefit) Provision for Income Taxes							(6,414)	291	(7,530)		(9,442)	(9,442)			(79)	(567)	(158)
(Loss) Income from Discontinued Operations, Net of Tax	(639)	(7,762)	(5,732)	(14,319)		(377)	(10,398)	87	(12,868)		4,566	4,494		(262)	(1,930)	(5,819)	(5,945)
Gain (Loss) on Sale of Discontinued Operations							245,654		245,654					(1,885)		(1,885)
Provision for Income Taxes							52,305		52,305
Gain (Loss) on Sale of Discontinued Operations, Net of Tax	(1,885)	193,349	(1,885)	193,349			193,349		193,349					(1,885)		(1,885)
Total (Loss) Income from Discontinued Operations and Sale, Net of Tax	(2,524)	185,587	(7,617)	179,030		(377)	182,951	87	180,481					(2,147)	(1,930)	(7,704)	(5,945)
Interest allocated to the Digital Business and included in loss from discontinued operations							$ 978		$ 2,396