Fair Value Measurements and Disclosures - Outstanding Derivative Instruments (Details) - USD ($)	Dec. 31, 2016	Dec. 26, 2015
Not Designated as Hedging Instrument [Member] \| Forward Foreign Currency Contracts [Member]
Derivatives Fair Value [Line Items]
Notional Principal	$ 13,900,000	$ 30,500,000

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant