Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 28, 2018	Mar. 29, 2017
Supplemental Cash Flow Information [Abstract]
Income taxes paid, net	$ 423	$ 395
Interest paid	4,272	3,261
Noncash investing and financing activities:
Issuance of common stock, pursuant to share-based compensation plans	3,513	4,946
Execution of capital leases	2,478	1,523
Treasury stock payable	615	862
Notes received in connection with disposition of property	$ 0	$ 1,750

The increase during the period in capital lease obligations due to entering into new capital leases.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Amount of cash paid for interest. Includes, but is not limited to, payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The fair value of liabilities assumed in noncash investing or financing activities.

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The fair value of notes issued in noncash investing and financing activities.

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The fair value of stock issued in noncash financing activities.

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