Annual report pursuant to Section 13 and 15(d)

Derivatives and Risk Management (Details)

v3.10.0.1
Derivatives and Risk Management (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 27, 2018
Dec. 28, 2017
Dec. 29, 2016
Derivative [Line Items]      
Notional amount   $ 102,500  
Derivative Asset, Noncurrent   710  
AOCI, Net of Tax   (72)  
Interest Rate Swap      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net [Abstract]      
Gain (loss) recognition in other comprehensive income (loss), effective portion     $ 100
Interest Rate Cap      
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net [Abstract]      
Gain (loss) recognition in other comprehensive income (loss), effective portion $ 391 (381) $ 176
Designated as Hedging Instrument [Member] | Interest Rate Cap      
Derivative [Line Items]      
Notional amount 102,500 102,500  
Derivative Asset, Noncurrent 1,076 710  
AOCI, Net of Tax 177 $ (133)  
Not Designated as Hedging Instrument [Member] | Interest Rate Cap      
Derivative [Line Items]      
Notional amount 102,500    
Derivative Asset, Noncurrent 1,075    
AOCI, Net of Tax $ 9