Summary of Significant Accounting Policies (Professional and General Liability and Workers Compensation Reserves) (Details) (USD $)	3 Months Ended	12 Months Ended			24 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012
Self Insurance Reserve [Line Items]
Reserve fo self-insured medical plans, current	$ 22,600,000	$ 22,600,000	$ 28,900,000		$ 28,900,000
Professional and General Liability and Workers Compensation [Member]
Self Insurance Reserve [Line Items]
Reserve fo self-insured medical plans, current	75,000,000	75,000,000	69,700,000		69,700,000
Professional and general liability insurance [Member]
Self Insurance Reserve [Line Items]
Third party maximum coverage amount	65,000,000.0
Annual self-insured retention amount				10,000,000.0	17,500,000.0
Self insurance reserve	337,700,000	337,700,000	340,200,000		340,200,000
Increase (decrease) in self insurance reserve		12,800,000	(500,000)	5,400,000
Increase (decrease) in self insurance reserve, net of taxes		7,800,000	(300,000)	3,300,000
Increase (decrease) in self insurance reserve, per diluted share		$ 0.10	$ (0.01)	$ 0.07
Workers compensation insurance [Member]
Self Insurance Reserve [Line Items]
Self insurance reserve	30,300,000	30,300,000	34,300,000		34,300,000
Discount rate used in estimate for reserve		3.00%
Increase (decrease) in self insurance reserve		(6,300,000)	(300,000)	(4,300,000)
Increase (decrease) in self insurance reserve, net of taxes		$ (3,900,000)	$ (200,000)	$ (2,600,000)
Increase (decrease) in self insurance reserve, per diluted share		$ (0.05)		$ (0.06)
Workers compensation insurance [Member] | Minimum [Member]
Self Insurance Reserve [Line Items]
Coverage per claim				600,000
Workers compensation insurance [Member] | Maximum [Member]
Self Insurance Reserve [Line Items]
Coverage per claim				1,300,000