BALANCE SHEET ITEMS - Additional Information (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2016 USD ($) business	Dec. 31, 2015 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Sep. 25, 2015 USD ($)	Mar. 31, 2015 USD ($)
Components of acquired intangible assets
Number of acquisitions completed | business		3
Other current assets related to purchase of assets on behalf of customer financed by a third party banking institution					$ 83,600
Customer working capital advances	$ 228,000	$ 228,000			253,700
Customer related accruals	494,500	494,500			479,500
Deferred revenue	311,300	311,300			332,300
Other current liability for purchase of assets on behalf of customer financed by a third party banking institution					122,000
Customer-related third party banking institution financing net settlement	90,600	90,576	$ 0
Asset-Backed Securitization Programs
Components of acquired intangible assets
Transferor's interests in transferred financial assets, fair value	668,918	$ 668,918	$ 534,695	$ 461,544	$ 501,097	$ 537,619	$ 600,672
YTWO Formative Joint Venture [Member] | RIB Software AG
Components of acquired intangible assets
Payments to acquire interest in joint venture	$ 60,000