Adoption of ASU 2014-09, "Revenue from Contracts with Customers" – Line Items Impacted by Cumulative Adjustment (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 30, 2018	Jan. 02, 2018	Dec. 31, 2017	Dec. 25, 2016	Dec. 27, 2015
Current assets:
Cash and cash equivalents	$ 19,468	$ 26,624	$ 22,345
Accounts receivable (less allowance for doubtful accounts of $2,117 in 2018 and $2,271 in 2017)	67,785	65,051	64,558
Accounts receivable - affiliates (no allowance for doubtful accounts in 2018 and 2017)	69	86	86
Notes receivable (no allowance for doubtful accounts in 2018 and 2017)	5,498	4,333	4,333
Income tax receivable	16,073	3,903	3,903
Inventories	27,203	30,620	30,620
Prepaid expenses	29,935	23,563	28,522
Other current assets	5,677	9,494	9,494
Assets held for sale		6,133	6,133
Total current assets	171,708	169,807	169,994
Property and equipment, net	226,894	234,331	234,331	$ 230,473
Notes receivable, less current portion (less allowance for doubtful accounts of $3,369 in 2018 and $1,047 in 2017)	23,259	15,568	15,568
Goodwill	84,516	86,892	86,892	85,529
Deferred income taxes, net	756	585	585
Other assets	63,814	47,276	48,183
Total assets	570,947	554,459	555,553
Current liabilities:
Accounts payable	29,891	29,845	32,006
Income and other taxes payable	6,590	10,561	10,561
Accrued expenses and other current liabilities	105,712	86,153	70,293
Deferred revenue current	2,443	2,400
Current portion of long-term debt	20,000	20,000	20,000
Total current liabilities	164,636	148,959	132,860
Deferred revenue	14,679	13,450	2,652
Long-term debt, less current portion, net	601,126	446,565	446,565
Deferred income taxes, net	7,852	6,082	12,546
Other long-term liabilities	79,324	60,146	60,146
Total liabilities	867,617	675,202	654,769
Redeemable noncontrolling interests	5,464	6,738	6,738
Stockholders’ (deficit):
Preferred stock ($0.01 par value per share; no shares issued)
Common stock ($0.01 par value per share; issued 44,301 at December 30, 2018 and 44,221 at December 31, 2017)	443	442	442
Additional paid-in capital	192,984	184,785	184,785
Accumulated other comprehensive loss	(3,143)	(2,117)	(2,117)	(5,887)
Retained earnings	244,061	270,724	292,251
Treasury stock (12,929 shares at December 30, 2018 and 10,290 shares at December 31, 2017, at cost)	(751,704)	(597,072)	(597,072)
Total stockholders’ (deficit)	(317,359)	(143,238)	(121,711)
Noncontrolling interests in subsidiaries	15,225	15,757	15,757
Total stockholders’ (deficit)	(302,134)	(127,481)	(105,954)	9,801	$ 42,206
Total liabilities, redeemable noncontrolling interests and stockholders’ (deficit)	570,947	554,459	555,553
Accounts receivable, allowance for doubtful accounts	2,117		2,271
Accounts receivable - affiliates, allowance for doubtful accounts	0		0
Notes receivable, allowance for doubtful accounts	0		0
Notes receivable, less current portion, allowance for doubtful accounts	$ 3,369		$ 1,047	$ 2,759
Preferred stock, par value	$ 0.01		$ 0.01
Preferred stock, shares issued	0		0
Common stock, par value	$ 0.01		$ 0.01
Common stock, shares issued	44,301,000		44,221,000
Treasury stock, shares	12,929,000		10,290,000
Accounting Standards Update 2014-09 | Total Adjustments
Current assets:
Cash and cash equivalents	$ (4,326)	4,279
Accounts receivable (less allowance for doubtful accounts of $2,117 in 2018 and $2,271 in 2017)	(401)	493
Prepaid expenses	4,771	(4,959)
Total current assets	44	(187)
Other assets	907	(907)
Total assets	951	(1,094)
Current liabilities:
Accounts payable	1,585	(2,161)
Accrued expenses and other current liabilities	(18,210)	15,860
Deferred revenue current	(2,443)	2,400
Total current liabilities	(19,068)	16,099
Deferred revenue	(11,231)	10,798
Deferred income taxes, net	7,255	(6,464)
Total liabilities	(23,044)	20,433
Stockholders’ (deficit):
Preferred stock ($0.01 par value per share; no shares issued)
Retained earnings	23,989	(21,527)
Total stockholders’ (deficit)	23,989	(21,527)
Noncontrolling interests in subsidiaries	6
Total stockholders’ (deficit)	23,995	(21,527)
Total liabilities, redeemable noncontrolling interests and stockholders’ (deficit)	$ 951	$ (1,094)