FINANCING ARRANGEMENTS (Details) (USD $)	12 Months Ended						1 Months Ended	12 Months Ended		12 Months Ended	1 Months Ended		12 Months Ended		1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009	Jun. 30, 2011 Senior term notes	Jun. 30, 2010 Senior term notes	Jun. 30, 2010 Senior term notes Interest rate swap	Jul. 31, 2009 Private Shelf Agreement	Jun. 30, 2010 Private Shelf Agreement	Jun. 30, 2011 Private Shelf Agreement	Jun. 30, 2010 Private Placement Senior Term Notes	Jun. 30, 2011 Convertible senior notes	Jul. 31, 2009 Convertible senior notes	Jun. 30, 2011 Convertible senior notes	Jun. 30, 2010 Convertible senior notes	Jun. 30, 2011 Term loan	Jun. 30, 2011 Term loan	Jun. 30, 2010 Term loan	Jun. 30, 2011 Revolving credit facility	Jun. 30, 2011 Revolving credit facility	Jun. 30, 2010 Revolving credit facility	Jun. 30, 2011 Equipment and leasehold notes payable	Jun. 30, 2010 Equipment and leasehold notes payable	Jun. 30, 2011 Other notes payable	Jun. 30, 2010 Other notes payable
Long-term debt
Interest rate percentage, minimum (as a percent)				6.69%	5.65%																8.80%	8.93%	5.75%	3.00%
Interest rate percentage, maximum (as a percent)				8.50%	8.39%																9.14%	9.35%	8.00%	8.00%
Interest rate percentage (as a percent)											5.00%		5.00%	5.00%			2.86%
Net carrying amount of long-term debt	$ 313,411,000	$ 440,029,000		$ 133,571,000	$ 174,107,000			$ 174,100,000	$ 133,600,000		$ 156,248,000		$ 156,248,000	$ 151,760,000			$ 85,000,000				$ 22,273,000	$ 27,473,000	$ 1,319,000	$ 1,689,000
Less current portion	(32,252,000)	(51,629,000)						40,500,000	22,100,000
Long-term portion	281,159,000	388,400,000
Aggregate maturities of long-term debt, including capital lease obligations
Capital lease obligations	22,300,000
Fiscal year, 2012	32,252,000
Fiscal year, 2013	29,091,000
Fiscal year, 2014	178,200,000
Fiscal year, 2015	19,959,000
Fiscal year, 2016	18,195,000
Thereafter	35,714,000
Net carrying amount of long-term debt	313,411,000	440,029,000		133,571,000	174,107,000			174,100,000	133,600,000		156,248,000		156,248,000	151,760,000			85,000,000				22,273,000	27,473,000	1,319,000	1,689,000
Long-term debt, additional disclosures
Minimum net worth covenant on long-term debt							675,000,000											800,000,000	800,000,000
Minimum net worth covenant on long-term debt after amendment							800,000,000											850,000,000	850,000,000
Fixed charge coverage ratio covenant on long-term debt							1.5
Fixed charge coverage ratio covenant on long-term debt after amendment							1.3
Maximum restricted payments if leverage ratio is greater than two							20,000,000
Risk based capital fee on long-term debt (as a percent)							1.00%
Period after amendment date risk based capital fee commences (in years)							1
Repayment of long-term notes								30,000,000		267,000,000
Make-whole payments and other fees related to repayment of long-term debt					12,800,000
Loss on settlement of interest rate derivatives	(613,000)	811,000	(1,482,000)			5,200,000
Total expenses recognized related to repayment of long-term debt	34,388,000	54,414,000	39,768,000		18,000,000
Long-term debt conversion ratio											64.8263	64.6726
Principal amount applied to conversion ratio											1,000	1,000	1,000
Long-term debt conversion price (in dollars per share)											$ 15.43	$ 15.46	$ 15.43
Convertible long-term debt amount allocated to equity												24,700,000
Fair value of long-term debt												147,800,000
Debt discount amortization period												5
Effective interest rate on the convertible debt (as a percent)												8.90%
Principal amount of long-term debt											172,500,000		172,500,000	172,500,000
Unamortized debt discount											(16,252,000)	(24,700,000)	(16,252,000)	(20,740,000)
Interest cost related to contractual interest coupon													8,625,000	8,266,000
Interest cost related to amortization of the discount													4,488,000	3,956,000
Total interest cost													13,113,000	12,222,000
Issuance of common stock (in shares)		13,225,000										13,225,000
Issuance of common stock		163,593,000										163,500,000
Variable interest rate basis																one-month LIBOR			LIBOR
Basis spread on variable interest rate (as a percent)															2.25%	2.25%		1.45%	1.45%
Outstanding debt repaid															85,000,000
Revolving credit facility maximum borrowing capacity																		400,000,000	400,000,000
Debt instrument term (in years)																		5
Revolving credit facility, quarterly facility fee (as a percent)																			0.30%
Maximum borrowing capacity, optional expansion																		200,000,000
Indebtedness related to Capital Leases, maximum																		50,000,000	50,000,000
Threshold default of other debt to trigger event of default																		10,000,000
Outstanding standby letters of credit																		26,000,000	26,000,000	24,600,000
Revolving credit facility remaining borrowing capacity																		$ 374,000,000	$ 374,000,000	$ 275,400,000