Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Sep. 30, 2016
Goodwill	$ 1,159,492	$ 1,169,813
Intangible Assets, Net (Including Goodwill)	1,453,219	1,480,118
Solutions Group
Goodwill	1,040,885	1,050,150
Intangible Assets, Net (Including Goodwill)	1,176,200	1,196,600
IoT Group
Goodwill	89,270	90,065
Intangible Assets, Net (Including Goodwill)	246,700	252,800
Professional Services
Goodwill	29,337	29,598
Intangible Assets, Net (Including Goodwill)	$ 30,400	$ 30,700