CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Total	Common Stock	Paid-in- Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance at Sep. 30, 2012	$ 474,406	$ 348	$ 1,103,611	$ (1,718,570)	$ 1,104,825	$ (15,808)
Beginning Balance (in shares) at Sep. 30, 2012		34,839
Share-based compensation	5,832		5,832
Issuance of treasury stock under employee stock plans (in shares)		639
Issuance of treasury stock under employee stock plans	6,189	7	(14,138)	20,320
Tax effect from share-based payment arrangements	973		973
Dividends paid ($0.02 per share)	(702)				(702)
Net income	23,421				23,421
Translation adjustments	(1,391)					(1,391)
Ending Balance at Dec. 31, 2012	$ 508,728	$ 355	$ 1,096,278	$ (1,698,250)	$ 1,127,544	$ (17,199)
Ending Balance (in shares) at Dec. 31, 2012		35,478