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Property and Equipment (Tables)
 12 Months Ended
Dec. 30, 2017
Property Plant And Equipment [Abstract]  
Summary of Property and Equipment

Property and equipment consisted of the following (in thousands):

 

 

December 30, 2017

 

 

December 31, 2016

 

 

Range of

Useful Lives

Land

 

$

312,909

 

 

$

303,208

 

 

 

Buildings and building improvements

 

 

1,189,634

 

 

 

1,144,041

 

 

10–40 years

Transportation equipment

 

 

949,236

 

 

 

835,089

 

 

5–10 years

Warehouse equipment

 

 

384,361

 

 

 

343,315

 

 

5–12 years

Office equipment, furniture and software

 

 

803,389

 

 

 

772,334

 

 

3–7 years

Construction in process

 

 

87,478

 

 

 

94,075

 

 

 

 

 

 

3,727,007

 

 

 

3,492,062

 

 

 

Less accumulated depreciation and amortization

 

 

(1,925,792

)

 

 

(1,724,451

)

 

 

Property and equipment—net

 

$

1,801,215

 

 

$

1,767,611