Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)	Non-controlling Interests
Balance, beginning of period (in shares) at Jan. 03, 2015		70,406,086
Balance, beginning of period at Jan. 03, 2015	$ 1,086,708	$ 58,669	$ 776,930	$ 232,812	$ (1,007)	$ 19,304
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income/(loss)	51,095			50,685	377	33
Dividends paid to stockholders ($0.64 per share)	(45,183)			(45,183)
Issuance of common stock and stock-based awards assumed in the Diamond Foods acquisition	0
Amortization of stock options, restricted units and performance-based restricted units	$ 2,194		2,194
Stock options exercised and restricted units vested (net of shares surrendered for tax withholding), (including $2,326 and $910 tax benefit, respectively) (in shares)	496,828	496,828
Stock options exercised and restricted units vested (net of shares surrendered for tax withholding), (including $2,326 and $910 tax benefit, respectively)	$ 10,186	$ 414	9,772
Issuance and amortization of restricted shares, net of cancellations (in shares)		88,983
Issuance and amortization of restricted shares, net of cancellations	3,423	$ 75	3,348
Repurchases of common stock (in shares)		(23,843)
Repurchases of common stock	(836)	$ (20)	(816)
Balance, end of period (in shares) at Jan. 02, 2016		70,968,054
Balance, end of period at Jan. 02, 2016	1,107,587	$ 59,138	791,428	238,314	(630)	19,337
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income/(loss)	(2,644)			14,885	(17,347)	(182)
Dividends paid to stockholders ($0.64 per share)	(57,466)			(57,466)
Dividends paid to non-controlling interests	(118)					(118)
Issuance of common stock and stock-based awards assumed in the Diamond Foods acquisition (in shares)		24,363,738,000
Issuance of common stock and stock-based awards assumed in the Diamond Foods acquisition	800,987	$ 20,302	780,685
Amortization of stock options, restricted units and performance-based restricted units	$ 21,642		21,642
Stock options exercised and restricted units vested (net of shares surrendered for tax withholding), (including $2,326 and $910 tax benefit, respectively) (in shares)	599,868	897,875
Stock options exercised and restricted units vested (net of shares surrendered for tax withholding), (including $2,326 and $910 tax benefit, respectively)	$ 3,645	$ 748	2,897
Issuance and amortization of restricted shares, net of cancellations (in shares)		106,457
Issuance and amortization of restricted shares, net of cancellations	5,006	$ 89	4,917
Repurchases of common stock (in shares)		(93,340)
Repurchases of common stock	(2,969)	$ (78)	(2,891)
Balance, end of period (in shares) at Dec. 31, 2016		96,242,784
Balance, end of period at Dec. 31, 2016	1,875,670	$ 80,199	1,598,678	195,733	(17,977)	19,037
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income/(loss)	169,417			148,492	20,074	851
Dividends paid to stockholders ($0.64 per share)	(61,966)			(61,966)
Issuance of common stock and stock-based awards assumed in the Diamond Foods acquisition	0
Amortization of stock options, restricted units and performance-based restricted units	$ 9,502		9,502
Stock options exercised and restricted units vested (net of shares surrendered for tax withholding), (including $2,326 and $910 tax benefit, respectively) (in shares)	1,355,159	1,363,436
Stock options exercised and restricted units vested (net of shares surrendered for tax withholding), (including $2,326 and $910 tax benefit, respectively)	$ 27,119	$ 1,136	25,983
Issuance and amortization of restricted shares, net of cancellations (in shares)		298,236
Issuance and amortization of restricted shares, net of cancellations	4,388	$ 249	4,139
Repurchases of common stock (in shares)		(46,516)
Repurchases of common stock	(1,841)	$ (39)	(1,802)
Balance, end of period (in shares) at Dec. 30, 2017		97,857,940
Balance, end of period at Dec. 30, 2017	$ 2,022,289	$ 81,545	$ 1,636,500	$ 282,259	$ 2,097	$ 19,888