Reportable Segments (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Mar. 31, 2013	Apr. 01, 2012	Sep. 30, 2012
Financial information concerning reportable segments
Revenue	$ 641,999,000	$ 624,345,000	$ 1,300,544,000	$ 1,306,972,000
Operating income	37,667,000	35,543,000	79,476,000	71,635,000
Depreciation	7,522,000	6,794,000	14,330,000	13,580,000
Total assets	1,927,934,000		1,927,934,000		1,671,030,000
Amortization of intangibles	9,100,000	6,900,000	14,700,000	15,200,000
ECS
Financial information concerning reportable segments
Revenue	259,194,000	279,895,000	537,361,000	559,055,000
Operating income	11,203,000	21,095,000	30,493,000	42,952,000
Depreciation	2,587,000	2,713,000	5,213,000	5,551,000
Total assets	931,281,000		931,281,000		915,571,000
TSS
Financial information concerning reportable segments
Revenue	222,108,000	249,338,000	466,032,000	504,462,000
Operating income	22,262,000	19,403,000	44,605,000	36,944,000
Depreciation	693,000	910,000	1,475,000	1,683,000
Total assets	655,088,000		655,088,000		638,405,000
RCM
Financial information concerning reportable segments
Revenue	178,499,000	117,412,000	336,930,000	278,217,000
Operating income	14,094,000	3,999,000	21,176,000	9,889,000
Depreciation	3,433,000	2,438,000	6,035,000	4,873,000
Total assets	449,064,000		449,064,000		311,051,000
Corporate
Financial information concerning reportable segments
Revenue	(17,802,000)	(22,300,000)	(39,779,000)	(34,762,000)
Operating income	(9,892,000)	(8,954,000)	(16,798,000)	(18,150,000)
Depreciation	809,000	733,000	1,607,000	1,473,000
Amortization of intangibles			14,700,000	15,200,000
Assets not allocated to segments and intercompany eliminations
Financial information concerning reportable segments
Total assets	$ (107,499,000)		$ (107,499,000)		$ (193,997,000)