Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 01, 2017	Apr. 02, 2016
Mr. Bock
Related Party Transaction
Lease payments	$ 0.9	$ 0.8

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration