SUMMARY OF ACCOUNTING POLICIES - Goodwill (Details) $ in Thousands	3 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($) segment	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) segment	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Goodwill [Line Items]
Number of operating segments | segment	4
Number of reportable units | segment	4		1
Impairment charges				$ 0	$ 0
Operating segments
Activity in goodwill account
Balance, beginning of the period		$ 334,483	$ 292,758	333,631	292,758
Additions			36,467	602,847
Purchase accounting adjustments		(656)	8,651	125
Foreign currency translation adjustments		(196)	(3,393)	5,463
Balance, end of the period	$ 942,066	333,631	334,483	942,066	333,631
Operating segments | High Reliability Solutions
Activity in goodwill account
Balance, beginning of the period		93,990	0	93,138	0
Additions			0	340,610
Purchase accounting adjustments		(656)	0	125
Foreign currency translation adjustments		(196)	0	5,463
Balance, end of the period	439,336	93,138	93,990	439,336	93,138
Operating segments | Consumer Technologies Group
Activity in goodwill account
Balance, beginning of the period		68,234	0	68,234	0
Additions			0	0
Purchase accounting adjustments		0	0	0
Foreign currency translation adjustments		0	0	0
Balance, end of the period	68,234	68,234	68,234	68,234	68,234
Operating segments | Industrial & Emerging Industries
Activity in goodwill account
Balance, beginning of the period		64,221	0	64,221	0
Additions			0	258,582
Purchase accounting adjustments		0	0	0
Foreign currency translation adjustments		0	0	0
Balance, end of the period	322,803	64,221	64,221	322,803	64,221
Operating segments | Communications & Enterprise Compute
Activity in goodwill account
Balance, beginning of the period		108,038	0	108,038	0
Additions			0	3,655
Purchase accounting adjustments		0	0	0
Foreign currency translation adjustments		0	0	0
Balance, end of the period	$ 111,693	$ 108,038	$ 108,038	$ 111,693	$ 108,038