INCOME TAXES - Reconciliation of Income Tax Expense (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Income Tax Contingency [Line Items]
Income taxes based on domestic statutory rates	$ 77,295	$ 114,011	$ 68,077
Effect of tax rate differential	(73,286)	(80,842)	(68,654)
Intangible amortization	11,214	5,143	4,750
Change in liability for uncertain tax positions	(13,724)	29,729	(2,178)
Change in valuation allowance	1,049	2,495	26,838
Other	8,046	(682)	6,027
Provision for income taxes	10,594	69,854	34,860
Income resulting from tax holidays and tax incentives	$ 6,600	$ 9,800	$ 15,200
Effect on basic loss per share due to income resulting from tax holidays and tax incentives (in dollars per share)	$ 0.01	$ 0.02	$ 0.02
Effect on diluted loss per share due to income resulting from tax holidays and tax incentives (in dollars per share)	$ 0.01	$ 0.02	$ 0.02
Expiration date of existing holidays	2022
Deferred tax liability, intangible assets	$ 88,760	$ 0
Tax effect of foreign income not repatriated to Singapore	36,600	0	$ 51,500
Nextracker
Income Tax Contingency [Line Items]
Increase (decrease) in valuation allowance	(43,000)
Valuation Allowance and Deferred Tax Assets, Profitability Forecasted
Income Tax Contingency [Line Items]
Increase (decrease) in valuation allowance	(63,300)	(55,000)	(37,400)
Valuation Allowance and Deferred Tax Assets, Profitability Forecasted | Nextracker
Income Tax Contingency [Line Items]
Increase (decrease) in valuation allowance	(43,000)
Valuation Allowance and Deferred Tax Assets, Current Period Losses
Income Tax Contingency [Line Items]
Increase (decrease) in valuation allowance	$ 64,300	$ 57,500	$ 64,200