Capital Transactions - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2018	Oct. 01, 2017
Capital Transactions [Line Items]
Share based compensation	$ 4,494	$ 6,473
Long-Term Performance Equity Plan [Member]
Capital Transactions [Line Items]
Award settled in cash or shares, average closing prices of shares during trading days of performance period	20 days
Long-Term Performance Equity Plan [Member] \| Selling, Delivery and Administrative Expenses [Member]
Capital Transactions [Line Items]
Share based compensation	$ 1,500

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration