BUSINESS AND ASSET ACQUISITIONS & DIVESTITURES - Narrative (Details) $ in Thousands	1 Months Ended			3 Months Ended								12 Months Ended
	Sep. 30, 2015 USD ($)	Jul. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jul. 01, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 25, 2015 USD ($)	Jun. 26, 2015 USD ($)	Mar. 31, 2017 USD ($) business acquisition	Mar. 31, 2016 USD ($) acquisition	Mar. 31, 2015 USD ($) acquisition	Apr. 30, 2017 USD ($)
Business Acquisitions
Total aggregate purchase price												$ 189,084	$ 916,527	$ 66,854
Goodwill				$ 984,867				$ 942,066				984,867	942,066
Liabilities incurred												$ 40,600	84,300
Number of non-core businesses sold | business												2
Proceeds from divestiture of businesses												$ 30,700
Gross carrying amount				544,601				508,099				544,601	508,099
Contingent consideration liability				22,426				73,423				22,426	73,423	4,500
Goodwill and other intangible assets, net				1,347,048				1,345,820				1,347,048	1,345,820
Net income (loss) (2)				86,874	$ 129,469	$ (2,508)	$ 105,729	61,344	$ 148,910	$ 122,977	$ 110,850	311,072	437,366	596,529
Pro forma net income (loss)													410,100	$ 586,400
Customer-related intangibles
Business Acquisitions
Gross carrying amount				260,704				223,046				260,704	223,046
Licenses and other intangibles
Business Acquisitions
Gross carrying amount				283,897				285,053				$ 283,897	$ 285,053
Other acquisitions
Business Acquisitions
Number of acquisitions completed | acquisition												4	8	4
Total aggregate purchase price												$ 189,100		$ 52,700
Cash acquired from acquisitions													$ 3,700	5,900
Property and equipment, net								14,400					$ 14,400	9,000
Goodwill				63,800								63,800		35,800
Intangibles				47,400								47,400
Intangible assets, weighted average useful life													4 years
Liabilities incurred				63,300				17,700				$ 63,300	$ 17,700
Contingent consideration liability														4,500
Purchase consideration net cash													53,300
Goodwill and other intangible assets, net								$ 57,400					57,400
Total current assets														29,400
Intangible assets and goodwill														16,100
2016 Acquisitions
Business Acquisitions
Net income (loss) (2)													41,400
2016 Acquisition
Business Acquisitions
Purchase consideration net cash														$ 7,500
Mirror Controls International
Business Acquisitions
Inventories			$ 19,897
Property and equipment, net			38,832
Goodwill			323,357
Intangibles			$ 236,800
Intangible assets, weighted average useful life			10 years
Total aggregate purchase price			$ 555,157
Percent of outstanding share capital acquired			100.00%
Cash and equivalents			$ 27,700
Other liabilities			61,492
Acquisition related costs													6,600
Total current assets			64,312
Mirror Controls International | Customer-related intangibles
Business Acquisitions
Gross carrying amount			75,500
Mirror Controls International | Licenses and other intangibles
Business Acquisitions
Gross carrying amount			$ 161,300
Nextracker
Business Acquisitions
Total aggregate purchase price	$ 240,800
Cash acquired from acquisitions	13,200
Inventories	3,235
Property and equipment, net	1,382
Goodwill	255,601
Intangibles	108,700
Liabilities incurred	81,000
Total aggregate purchase price	$ 321,750
Percent of outstanding share capital acquired	100.00%
Other liabilities	$ 45,712
Contingent consideration liability	97,200
Released valuation allowance													$ 43,000
Total current assets	$ 82,805
Nextracker | Customer-related intangibles
Business Acquisitions
Intangible assets, weighted average useful life	4 years
Increase in intangible assets	$ 47,300
Nextracker | Licenses and other intangibles
Business Acquisitions
Intangible assets, weighted average useful life	6 years
Increase in intangible assets	$ 61,400
Bose
Business Acquisitions
Number of acquisitions completed | business												2
Total aggregate purchase price												$ 161,700
Cash acquired from acquisitions												18,000
Inventories				73,100								73,100
Property and equipment, net				$ 60,800								60,800
Liabilities incurred												$ 28,000
Bose | Customer-related intangibles
Business Acquisitions
Intangible assets, weighted average useful life												6 years 6 months
Alcatel-Lucent
Business Acquisitions
Total aggregate purchase price		$ 67,500
Inventories		55,100
Property and equipment, net		10,000
Goodwill		3,600
Intangibles		2,100
Net assets (liabilities) assumed		$ (3,300)
Alcatel-Lucent | Customer-related intangibles
Business Acquisitions
Intangible assets, weighted average useful life		5 years
High Reliability Solutions (HRS) | Other acquisitions
Business Acquisitions
Number of acquisitions completed | acquisition													4
Industrial & Emerging Industries (IEI) | Other acquisitions
Business Acquisitions
Number of acquisitions completed | acquisition													2
Communications Enterprise Compute (CEC) | Other acquisitions
Business Acquisitions
Number of acquisitions completed | acquisition													1
Consumer Technologies Group (CTG) | Other acquisitions
Business Acquisitions
Number of acquisitions completed | acquisition													1
Subsequent Event | High Reliability Solutions (HRS) | AGM Automotive
Business Acquisitions
Total aggregate purchase price															$ 220,000