Consolidated Statements of Shareholders' Equity and Comprehensive Income (Loss) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Total shareholders' equity	$ 989,095	$ 1,018,497	$ 989,095	$ 1,018,497	$ 1,046,379	$ 660,879
Common Stock, Shares, Outstanding	51,483,000	52,226,000	51,483,000	52,226,000
Net (loss) income	5,513	(33,831)	48,572	(75,171)	(190,107)
Adjustment of additional minimum pension liability			(11,150)	(4,299)	(17,773)
Valuation allowance adjustment			126	2,706	(2,398)
Translation adjustment			(8,602)	(10,115)	12,596
Other unrealized gains and losses			637	4,759	(6,490)
Comprehensive income (loss)			29,583	(82,120)	(204,172)
Treasury Stock, Value, Acquired, Cost Method			(30,996)	(3,409)	(2,207)
Stock Issued During Period, Shares, New Issues				1,150,000	20,433,000
Stock Issued During Period, Value, New Issues				29,851	575,203
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures					0
Amortization of unearned restricted stock compensation			29,164	30,389	16,676
Restricted Stock Units Surrendered				(2,593)
Common Stock [Member]
Total shareholders' equity	528	525	528	525	514	300
Common Stock, Shares, Outstanding	51,483,000	52,226,000	51,483,000	52,226,000	51,020,000	30,000,000
Stock Issued During Period, Shares, New Issues				1,150,000	20,433,000
Stock Issued During Period, Value, New Issues				11	205
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures			368,000	180,000	939,000
Stock Repurchased and Retired During Period, Shares			(1,111,000)	(124,000)	(81,000)
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures			3		9
Unvested Restricted Stock Units, Not Issued or Outstanding, Shares					(271,000)
Additional Paid-in Capital [Member]
Total shareholders' equity	1,399,261	1,374,097	1,399,261	1,374,097	1,316,461	724,796
Stock Issued During Period, Value, New Issues				29,840	574,998
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures			(3)		(9)
Amortization of unearned restricted stock compensation			29,164	30,389	16,676
Restricted Stock Units Surrendered			(3,997)	(2,593)
Retained Earnings [Member]
Total shareholders' equity	(340,647)	(336,063)	(340,647)	(336,063)	(260,892)	(70,785)
Net (loss) income			48,572	(75,171)	(190,107)
Common Stock, Dividends, Per Share, Declared			$ (53,156)
Accumulated Other Comprehensive Income (Loss) [Member]
Total shareholders' equity	(33,435)	(14,446)	(33,435)	(14,446)	(7,497)	6,568
Adjustment of additional minimum pension liability			(11,150)	(4,299)	(17,773)
Valuation allowance adjustment			126	2,706	(2,398)
Translation adjustment			(8,602)	(10,115)	12,596
Other unrealized gains and losses			637	4,759	(6,490)
Treasury Stock [Member]
Total shareholders' equity	(36,612)	(5,616)	(36,612)	(5,616)	(2,207)	0
Treasury Stock, Value, Acquired, Cost Method			$ (30,996)	$ (3,409)	$ (2,207)