CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Common stock [Member]	Additional paid-in capital [Member]	Accumulated deficit [Member]	Accumulated other comprehensive loss [Member]	Non-controlling interests [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative-effect from a change in accounting principle		$ 14,364			$ 14,364
Balance (in shares) at Dec. 25, 2016			103,922,000
Balance at Dec. 25, 2016		226,063	$ 1,039	$ 1,079,583	(756,070)	$ (111,143)	$ 12,654
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		85,595			83,758		1,837
Other comprehensive (loss) income, net of tax		12,281				12,319	(38)
Cash dividends declared, per common share		(16,308)		(16,308)
Repurchase and retirement of common stock, shares			(9,917,000)
Repurchase and retirement of common stock		(198,728)	$ (99)		(198,629)
Stock-based compensation		12,716		12,716
Common stock issued under stock plans, shares	[1]		1,003,000
Common stock issued under stock plans	[1]	4,464	$ 10	4,597	(143)
Change in redemption value of redeemable interests		(126)		(126)
Purchase of noncontrolling interests, net of tax of $45		(892)		(713)			(179)
Distributions to noncontrolling interests		(3,754)					(3,754)
Contributions from noncontrolling interests		481					481
Balance (in shares) at Jun. 25, 2017			95,008,000
Balance at Jun. 25, 2017		$ 136,156	$ 950	1,079,749	(856,720)	(98,824)	11,001
Balance (in shares) at Dec. 31, 2017		91,912,546	91,913,000
Balance at Dec. 31, 2017		$ 81,231	$ 919	1,081,813	(913,191)	(99,199)	10,889
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		93,182			92,119		1,063
Other comprehensive (loss) income, net of tax		(27,132)				(27,473)	341
Cash dividends declared, per common share		$ (16,734)		(16,734)
Repurchase and retirement of common stock, shares		(3,403,000)	(3,404,000)
Repurchase and retirement of common stock		$ (81,000)	$ (34)		(80,966)
Stock-based compensation		11,178		11,178
Common stock issued under stock plans, shares	[1]		3,928,000
Common stock issued under stock plans	[1]	33,119	$ 39	33,080
Change in redemption value of redeemable interests		(322)		(322)
Distributions to noncontrolling interests		(3,372)					(3,372)
Contributions from noncontrolling interests		$ 1,320					1,320
Balance (in shares) at Jul. 01, 2018		92,437,047	92,437,000
Balance at Jul. 01, 2018		$ 91,470	$ 924	$ 1,109,015	$ (902,038)	$ (126,672)	$ 10,241

[1] Net of forfeitures and shares withheld for employee taxes.