Segment Information (Revenue and Operating Income) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		20 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017
Revenue	$ 291,293	$ 288,652	$ 857,660	$ 852,296
Cost of Revenue	82,268	82,470	246,213	242,809
Gross margin	209,025	206,182	611,447	609,487
Unallocated Operating Expennses	170,082	168,711	504,746	484,919
Restructuring charges	1,551	2,815	8,300	44,541	$ 85,500
Operating income	11,256	7,596	23,330	(3,939)
Interest expense	(10,200)	(8,164)	(32,239)	(19,511)
Non operating income and expenses	357	136	(2,049)	369
Income (loss) before income taxes	699	(704)	(6,860)	(23,819)
Operating Segments
Revenue	291,293	288,652	857,660	852,296
Total Segment Cost of Revenue	108,404	109,530	321,284	326,775
Segment Gross Profit	182,889	179,122	536,376	525,521
Operating Segments | IoT Group
Revenue	25,204	20,678	68,409	51,034
Cost of Revenue	25,454	22,255	72,051	61,478
Gross margin	(250)	(1,577)	(3,642)	(10,444)
Operating Segments | Solutions Group
Revenue	222,431	217,673	654,315	652,985
Cost of Revenue	47,362	44,882	138,552	140,465
Gross margin	175,069	172,791	515,763	512,520
Operating Segments | Professional Services
Revenue	43,658	50,301	134,936	148,277
Cost of Revenue	35,588	42,393	110,681	124,832
Gross margin	$ 8,070	$ 7,908	$ 24,255	$ 23,445