Segment Information (Revenue And Operating Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014		Sep. 30, 2013
Revenue	$ 1,255,242	$ 1,356,967		$ 1,293,541
Operating income	41,616	196,576		127,324
Sales and marketing expenses	(355,070)	(371,392)	[1]	(378,771)	[1]
General and administrative expenses	(238,188)	(144,003)	[1]	(136,999)	[1]
Other income (expense), net	(15,091)	(10,464)		(1,090)
Income before income taxes	26,525	186,112		126,234
Restructuring charges	43,409	28,406		52,197
Depreciation and amortization	84,433	77,307		76,551
Software Products [Member]
Revenue	973,312	1,032,230		977,523
Operating income	591,845	663,593	[1]	605,963	[1]
Restructuring charges	11,600	2,800		17,700
Depreciation and amortization	60,700	55,000		52,600
Services [Member]
Revenue	281,930	324,737		316,018
Operating income	43,029	48,378	[1],[2]	37,131	[1],[2]
Restructuring charges	10,400	9,800		11,300
Depreciation and amortization	8,100	7,400		6,100
General And Administrative [Member]
Restructuring charges	5,100	1,800		5,100
Sales And Marketing [Member]
Restructuring charges	$ 16,300	$ 13,900		$ 18,100

[1] We recorded restructuring charges of $43.4 million in 2015. Software Products included $11.6 million; Services included $10.4 million; sales and marketing expenses included $16.3 million; and general and administrative expenses included $5.1 million of the restructuring charges recorded in 2015.We recorded restructuring charges of $28.4 million in 2014. Software Products included $2.8 million; Services included $9.8 million; sales and marketing expenses included $13.9 million; and general and administrative expenses included $1.8 million of the total restructuring charges recorded in 2014. We recorded restructuring charges of $52.2 million in 2013. Software Products included $17.7 million; Services included $11.3 million; sales and marketing expenses included $18.1 million; and general and administrative expenses included $5.1 million of the total restructuring charges recorded in 2013.

[2] The Software Products segment operating income includes depreciation and amortization of $60.7 million, $55.0 million, and $52.6 million in 2015, 2014, and 2013, respectively. The Services segment operating income includes depreciation and amortization of $8.1 million, $7.4 million, and $6.1 million in 2015, 2014, and 2013, respectively.We report revenue by the following four product areas: •CAD: PTC Creo® and PTC Mathcad®. •ePLM: PLM solutions (primarily PTC Windchill®) and ALM solutions (primarily PTC Integrity™) and Atego®.•SLM: PTC Arbortext® and PTC Servigistics®.