Maintenance and Warranty Accruals (Tables)

12 Months Ended

Aug. 31, 2012

Maintenance and Warranty Accruals

	Years ended August 31,
(In thousands)	2012			2011			2010
Accrued maintenance
Balance at beginning of period	$	10,865		$	12,460		$	16,206
Charged to cost of revenue		10,750			12,034			13,581
Payments		(10,140	)		(13,629	)		(17,327	)
Balance at end of period	$	11,475		$	10,865		$	12,460
Accrued warranty
Balance at beginning of period	$	8,645		$	6,304		$	8,184
Charged to cost of revenue		2,496			3,856			425
Payments		(1,746	)		(1,547	)		(2,252	)
Currency translation effect		(174	)		32			(53	)
Balance at end of period	$	9,221		$	8,645		$	6,304