Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Cash Balance Plan [Member]

Schedule Of Components Of Pension Cost

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Interest cost on projected benefit obligation	$	3.0		$	3.1		$	6.0		$	6.2
Service cost		1.0			0.6			1.9			1.3
Expected return on plan assets		(2.8	)		(3.1	)		(5.6	)		(6.1	)
Amortization and deferrals - net		1.7			1.7			3.5			3.2
Pension cost	$	2.9		$	2.3		$	5.8		$	4.6

Unfunded Executive Pension Plans [Member]

Schedule Of Components Of Pension Cost

	Three Months Ended June 30,					Six Months Ended June 30,
	2011		2010			2011			2010
Service cost	$	0.2	$	0.3		$	0.3		$	0.7
Interest cost on projected benefit obligation		0.3		0.5			0.7			1.0
Curtailment loss		—		—			(1.5	)		2.3
Amortization and deferrals - net		—		(0.1	)		—			(0.1	)
Pension cost	$	0.5	$	0.7		$	(0.5	)	$	3.9