Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 25, 2016	Jun. 27, 2015
Cash Flows from Operating Activities:
Net income	$ 50,653	$ 44,482
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation, amortization and accretion	9,179	7,596
Provision for doubtful accounts	1,071	35
Benefit for deferred income taxes	(85)	(1,415)
Provision for non-cash stock compensation	1,048	528
Changes in assets and liabilities:
Accounts receivable	(13,932)	8,708
Inventories	14,753	(25,259)
Prepaids and other current assets	(1,172)	(680)
Other assets	(3,230)	(2,706)
Accounts payable	(11,408)	8,476
Accrued compensation and other liabilities	(10,333)	(4,910)
Cash provided by operating activities	36,544	34,855
Cash Flows from Investing Activities:
Property, plant and equipment additions	(10,118)	(11,016)
Purchase of equity investment		(2,000)
Cash used in investing activities	(10,118)	(13,016)
Cash Flows from Financing Activities:
Other stock related activity	(97)	49
Purchase and cancellation of common stock	(17,091)	(2,345)
Cash used in financing activities	(17,188)	(2,296)
Net Increase in Cash and Cash Equivalents	9,238	19,543
Cash and Cash Equivalents, Beginning of Period	78,659	47,656
Cash and Cash Equivalents, End of Period	87,897	67,199
Supplemental Cash Flow Information
Cash paid for interest expense	133	141
Cash paid for income taxes	$ 32,053	$ 27,480