GOODWILL AND INTANGIBLE ASSETS - Intangible Assets - IPR&D Expense Excluded from Estimated Future Expense (Details) $ in Millions	Jan. 02, 2016 USD ($)
GOODWILL AND INTANGIBLE ASSETS
Future IPR&D expense excluded from estimated future expense	$ 2.4

Amortization expense related to certain in process research and development, excluded from estimated aggregate amortization expense.

No definition available.

Name:	newp_ExcludedAmortizationExpenseFromEstimatedAggregateAmortizationExpense
Namespace Prefix:	newp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant