Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Capital in Excess of Par	(Deficit) Retained Earnings	Other Comprehensive Income (Loss)	Total
Increase (Decrease) in Stockholders' Equity
Revision (See Note 2) | Revision to Financial Statements			$ 4,287		$ 4,287
Balance (As Presented) at Sep. 30, 2012		$ 1,554,883	168,943	$ (18,594)	1,705,232
Balance at Sep. 30, 2012		1,554,883	173,230	(18,594)	1,709,519
Balance (in shares) (As Presented) at Sep. 30, 2012	1
Balance (in shares) at Sep. 30, 2012	1
Increase (Decrease) in Stockholders' Equity
Net income (loss)			129,480		129,480
Other comprehensive income (loss), net of tax				5,010	5,010
Dividend to Holdings			(216,926)		(216,926)
Stock-based compensation		2,043			2,043
Balance at Sep. 30, 2013		1,556,926	85,784	(13,584)	1,629,126
Balance (in shares) at Sep. 30, 2013	1
Increase (Decrease) in Stockholders' Equity
Net income (loss)			(44,152)		(44,152)
Other comprehensive income (loss), net of tax				(15,619)	(15,619)
Dividend to Holdings			(60,063)		(60,063)
Stock-based compensation		4,088			4,088
Balance (Revision to Financial Statements)					4,287
Balance at Sep. 30, 2014		1,561,014	(18,431)	(29,203)	1,513,380
Balance (in shares) at Sep. 30, 2014	1
Increase (Decrease) in Stockholders' Equity
Net income (loss)			74,418		74,418
Other comprehensive income (loss), net of tax				(80,499)	(80,499)
Dividend to Holdings		(21,275)	(57,123)		(78,398)
Stock-based compensation		2,845			2,845
Balance at Sep. 30, 2015		$ 1,542,584	$ (1,136)	$ (109,702)	$ 1,431,746
Balance (in shares) at Sep. 30, 2015	1