Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Addl. Paid in Capital	Treasury Stock	Accum. Other Comp. Inc. (Loss)	Retained Earnings	Non- controlling Interest
Balance at Dec. 30, 2017	$ 927,556	$ 229	$ 310,012	$ (41,294)	$ (63,668)	$ 722,140	$ 137
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	36,029					36,029
Cumulative effect adjustment	0				(9,795)	9,795
Other comprehensive income (loss), net of tax	(279)				(279)
Stock-based compensation	8,714		8,714
Withheld shares on restricted share units for withholding taxes	(2,758)			(2,758)
Stock options exercised	9,609		9,609
Issuance of common stock	472,301	22	472,279
Cash dividends paid	(9,198)					(9,198)
Balance at Mar. 31, 2018	1,441,974	251	800,614	(44,052)	(73,742)	758,766	137
Balance at Dec. 30, 2017	927,556	229	310,012	(41,294)	(63,668)	722,140	137
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	131,900
Other comprehensive income (loss), net of tax	(24,168)
Balance at Sep. 29, 2018	1,519,396	254	830,612	(48,546)	(97,631)	834,577	130
Balance at Mar. 31, 2018	1,441,974	251	800,614	(44,052)	(73,742)	758,766	137
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	42,326					42,326
Other comprehensive income (loss), net of tax	(15,942)				(15,942)
Stock-based compensation	7,169		7,169
Non-controlling interest	(7)						(7)
Withheld shares on restricted share units for withholding taxes	(4,284)			(4,284)
Stock options exercised	8,045	2	8,043
Cash dividends paid	(9,261)					(9,261)
Balance at Jun. 30, 2018	1,470,020	253	815,826	(48,336)	(89,684)	791,831	130
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	53,546					53,546
Other comprehensive income (loss), net of tax	(7,947)				(7,947)
Stock-based compensation	7,270		7,270
Withheld shares on restricted share units for withholding taxes	(210)			(210)
Stock options exercised	7,517	1	7,516
Cash dividends paid	(10,800)					(10,800)
Balance at Sep. 29, 2018	1,519,396	254	830,612	(48,546)	(97,631)	834,577	130
Balance at Dec. 29, 2018	1,478,342	254	835,828	(116,454)	(97,924)	856,507	131
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	36,989					36,989
Other comprehensive income (loss), net of tax	8,073				8,073
Stock-based compensation	3,966		3,966
Withheld shares on restricted share units for withholding taxes	(94)			(94)
Stock options exercised	2,292		2,292
Repurchases of common stock	(13,555)			(13,555)
Cash dividends paid	(10,625)					(10,625)
Balance at Mar. 30, 2019	1,505,388	254	842,086	(130,103)	(89,851)	882,871	131
Balance at Dec. 29, 2018	1,478,342	254	835,828	(116,454)	(97,924)	856,507	131
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	116,428
Other comprehensive income (loss), net of tax	(14,684)
Balance at Sep. 28, 2019	1,472,212	256	860,871	(216,384)	(112,608)	939,946	131
Balance at Mar. 30, 2019	1,505,388	254	842,086	(130,103)	(89,851)	882,871	131
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	43,792					43,792
Other comprehensive income (loss), net of tax	(5,731)				(5,731)
Stock-based compensation	8,284		8,284
Withheld shares on restricted share units for withholding taxes	(4,010)			(4,010)
Stock options exercised	4,823	1	4,822
Repurchases of common stock	(31,955)			(31,955)
Cash dividends paid	(10,649)					(10,649)
Balance at Jun. 29, 2019	1,509,942	255	855,192	(166,068)	(95,582)	916,014	131
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	35,647					35,647
Other comprehensive income (loss), net of tax	(17,026)				(17,026)
Stock-based compensation	3,488		3,488
Withheld shares on restricted share units for withholding taxes	(790)			(790)
Stock options exercised	2,192	1	2,191
Repurchases of common stock	(49,526)			(49,526)
Cash dividends paid	(11,715)					(11,715)
Balance at Sep. 28, 2019	$ 1,472,212	$ 256	$ 860,871	$ (216,384)	$ (112,608)	$ 939,946	$ 131