STOCKHOLDERS' EQUITY TRANSACTIONS (Details 2) (Restricted Stock Units (RSUs) [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
Jun. 28, 2014
Restricted Stock Units (RSUs) [Member]
Stock-based compensation
Cancelled (in shares)	0.1
Cancelled, value	$ 2.9

The number of equity-based payment instruments, excluding stock (or unit) options, that were cancelled during the reporting period.

No definition available.

Name:	newp_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledInPeriod
Namespace Prefix:	newp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration