Business Segment Information (Schedule Of Business Segment Information) (Details) (USD $) In Millions	3 Months Ended				6 Months Ended				12 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010		Dec. 31, 2011	Dec. 31, 2010
Revenues	$ 551.6		$ 528.2		$ 1,096.2		$ 1,074.2
Depreciation	21.1		25.7		42.3		51.3
Amortization	2.4		2.6		4.8		5.2		10.0
Restructuring Charges			17.6				17.6
Operating Income (Loss)	38.1		7.8		75.1		29.9
Capital Expenditures	19.6		12.9		37.3		27.3
Cost allocated for discontinued business segment included in continuing operations			2.9		1.5		9.1
CEO transition costs							6.2
Goodwill, net	820.7				820.7					820.5
Customer Management [Member]
Revenues	469.6		446.1		928.1		909.7
Depreciation	14.7		17.4		29.6		34.2
Amortization	1.8		1.9		3.7		3.8
Restructuring Charges			15.3				15.3
Operating Income (Loss)	37.3		8.0		69.5		41.8
Capital Expenditures	13.2	[1]	7.8	[1]	24.6	[1]	17.6	[1]
Goodwill, net	623.5				623.5					624.1
Information Management [Member]
Revenues	77.0		78.0		156.8		160.4
Depreciation	3.2		3.7		6.3		7.6
Amortization	0.6		0.7		1.1		1.4
Operating Income (Loss)	6.5		9.4		13.7		16.3
Capital Expenditures	3.2	[1]	2.2	[1]	7.0	[1]	4.5	[1]
Goodwill, net	197.2				197.2					196.4
Corporate And Other [Member]
Revenues	5.0		4.1		11.3		4.1
Depreciation	3.2		4.6		6.4		9.5
Restructuring Charges			2.3				2.3
Operating Income (Loss)	(5.7)	[2]	(9.6)	[2]	(8.1)	[2]	(28.2)	[2]
Capital Expenditures	$ 3.2	[3]	$ 2.9	[3]	$ 5.7	[3]	$ 5.2	[3]

[1] Excludes proceeds from the disposal of property and equipment.

[2] Includes a $1.5 benefit associated with the Supplemental Executive Retirement Plan (SERP) curtailment for the six months ended June 30, 2011, costs previously allocated to the HR Management line of business of $2.9 and $9.1 for the three and six months ended June 30, 2010, and CEO transition costs of $6.2 for the six months ended June, 2010.

[3] Includes shared services-related capital expenditures