VPT LOANS - Additional Information (Detail)		6 Months Ended
	Jul. 31, 2015 USD ($)	Apr. 01, 2016 USD ($) installment	Oct. 02, 2015 USD ($)	May. 31, 2015 USD ($) installment
Long term notes receivable and available for sale securities [Line Items]
Available-for-sale securities:		$ 88,800,000	$ 93,000,000
NYPC loan
Long term notes receivable and available for sale securities [Line Items]
Accounts receivable from CPTC, includes unbilled accounts receivable		12,100,000
CPTC loans
Long term notes receivable and available for sale securities [Line Items]
Accounts receivable from CPTC, includes unbilled accounts receivable		27,700,000	25,200,000
CPTC loan facility, Varian's maximum loan commitment		$ 9,700,000
CPTC loan facility, minimum interest rate (as a percent)		9.00%
CPTC loan facility, amortization period over which monthly payments are calculated after January 1, 2015 (in years)		15 years
CPTC loans | Tranche C Loans
Long term notes receivable and available for sale securities [Line Items]
Available-for-sale securities:		$ 1,000,000
CPTC loans | Tranche A loan
Long term notes receivable and available for sale securities [Line Items]
Available-for-sale securities:		76,900,000	73,500,000
CPTC loans | Tranche B loan
Long term notes receivable and available for sale securities [Line Items]
Available-for-sale securities:		$ 10,900,000	10,400,000
CPTC loans | London Interbank Offered Rate (LIBOR)
Long term notes receivable and available for sale securities [Line Items]
CPTC loan facility, interest rate margin (as a percent)		7.00%
MPTC loan
Long term notes receivable and available for sale securities [Line Items]
Accounts receivable from CPTC, includes unbilled accounts receivable		$ 22,000,000	28,600,000
Loans Receivable
Long term notes receivable and available for sale securities [Line Items]
Notes receivable		37,100,000	30,900,000
Loans Receivable | NYPC loan
Long term notes receivable and available for sale securities [Line Items]
Maximum lending commitment	$ 91,500,000
Notes receivable		$ 24,900,000	18,700,000
Loans Receivable | MPTC loan
Long term notes receivable and available for sale securities [Line Items]
Maximum lending commitment				$ 35,000,000
Interest rate (as a percent)		12.00%
Notes receivable		$ 12,200,000	$ 12,200,000
Number of annual payments | installment				3
Number of installments | installment		4
Installment payment amount		$ 5,700,000
Roll Over Loan | MPTC loan
Long term notes receivable and available for sale securities [Line Items]
Notes receivable				$ 10,000,000.0
Accrued interest				$ 2,200,000
Senior First Lien Loan | NYPC loan
Long term notes receivable and available for sale securities [Line Items]
Maximum lending commitment	$ 73,000,000
Term (in years)	6 years
Interest rate (as a percent)	9.00%
Senior Subordinated Loans | NYPC loan
Long term notes receivable and available for sale securities [Line Items]
Maximum lending commitment	$ 18,500,000
Term (in years)	6 years 6 months
Interest rate (as a percent)	13.50%
Varian Medical Systems, Inc. | CPTC loans
Long term notes receivable and available for sale securities [Line Items]
CPTC loan facility, Varian's maximum loan commitment		$ 4,400,000