Property, Plant and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

7. PROPERTY, PLANT AND EQUIPMENT

The major components of property, plant and equipment along with their respective estimated useful lives are as follows:

	Useful Life (years)		December 31, 2016		January 2, 2016
Land		n/a	$	5,866	$	5,396
Land improvements		5		4,959		4,594
Buildings		20 – 30		156,144		146,930
Machinery and equipment		5 – 15		214,999		195,561
Software		3 – 5		20,974		18,229
Furniture and fixtures		3 – 10		2,774		2,421
Vehicles		2 – 5		1,257		1,302
Construction in progress		n/a		26,071		7,749
				433,044		382,182
Less: accumulated depreciation and amortization				175,744		144,260
			$	257,300	$	237,922

The net book value of internal-use software costs included in software above was $5,261 and $5,777 as of December 31, 2016 and January 2, 2016, respectively. Depreciation of capitalized internal-use computer software costs included in depreciation expense for Fiscal 2016, Fiscal 2015 and Fiscal 2014 was $3,262, $3,153 and $2,876, respectively.

Depreciation expense for Fiscal 2016, Fiscal 2015 and Fiscal 2014 was $33,448, $31,149 and $28,182, respectively.