The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Subsequent Events (Details) - USD ($) $ in Thousands		12 Months Ended
Subsequent Events (Details) - USD ($) $ in Thousands	Jan. 02, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Subsequent Event [Line Items]
Purchase of property		$ 95,696	$ 95,857	$ 142,144
Subsequent Event [Member]
Subsequent Event [Line Items]
Purchase of property	$ 3,900