Securities (including those issuable pursuant to contingent stock agreements) that if converted could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

No definition available.

(Loss) Earnings per Share (Details)	3 Months Ended								12 Months Ended
(Loss) Earnings per Share (Details)	Dec. 29, 2019 USD ($) $ / shares	Sep. 29, 2019 USD ($) $ / shares	Jun. 30, 2019 USD ($) $ / shares	Mar. 31, 2019 USD ($) $ / shares	Dec. 30, 2018 USD ($) $ / shares	Sep. 30, 2018 USD ($) $ / shares	Jul. 01, 2018 USD ($) $ / shares	Apr. 01, 2018 USD ($) $ / shares	Dec. 29, 2019 USD ($) item $ / shares shares	Dec. 30, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares
Number of joint ventures for which the increase in redemption value for the noncontrolling interest reduces income attributable to common shareholders \| item									1
Change in redemption value of noncontrolling interests											$ 1,419,000
Basic (loss) earnings per common share:
Net income (loss) attributable to the Company	$ (2,142,000)	$ 385,000	$ 8,354,000	$ (1,731,000)	$ (12,868,000)	$ (13,300,000)	$ 11,199,000	$ 17,443,000	$ 4,866,000	$ 2,474,000	102,292,000
Preferred stock dividends and accretion									(12,499,000)
Change in noncontrolling interest redemption value											1,419,000
Net income attributable to participating securities											(423,000)
Net (loss) income attributable to common shareholders									$ (7,633,000)	$ 2,474,000	$ 103,288,000
Basic weighted average common shares outstanding \| shares									31,632,000	32,083,000	36,083,000
Basic (loss) earnings per common share \| $ / shares	$ (0.18)	$ (0.10)	$ 0.15	$ (0.12)	$ (0.41)	$ (0.42)	$ 0.35	$ 0.52	$ (0.24)	$ 0.08	$ 2.86
Diluted (loss) earnings per common share:
Net (loss) income attributable to common shareholders									$ (7,633,000)	$ 2,474,000	$ 103,288,000
Basic weighted average common shares outstanding \| shares									31,632,000	32,083,000	36,083,000
Dilutive effect of outstanding equity awards \| shares										216,000	439,000
Diluted weighted average common shares outstanding \| shares									31,632,000	32,299,000	36,522,000
Diluted (loss) earnings per common share \| $ / shares	$ (0.18)	$ (0.10)	$ 0.15	$ (0.12)	$ (0.41)	$ (0.42)	$ 0.35	$ 0.52	$ (0.24)	$ 0.08	$ 2.83
Weighted average antidilutive awards excluded from computation of earnings per share \| shares										1,200,000	278,000
Joint ventures
Change in redemption value of noncontrolling interests									$ 0	$ 0	$ 1,400,000
Basic (loss) earnings per common share:
Change in noncontrolling interest redemption value									$ 0	$ 0	$ 1,400,000
Series B Preferred Stock
Diluted (loss) earnings per common share:
Weighted average antidilutive awards excluded from computation of earnings per share \| shares									252,530
Weighted average antidilutive awards if converted \| shares									5,000,000.0