SUPPLEMENTAL BALANCE SHEET INFORMATION

The composition of trade receivables, net is as follows:



	December 31, 2016			December 26, 2015

	(in thousands)
Client receivables	$	283,997		$	230,010
Unbilled revenue	82,203			45,996
Total	366,200			276,006
Less: Allowance for doubtful accounts	(2,150		)	(5,938		)
Trade receivables, net	$	364,050		$	270,068

Recoveries to the allowance for doubtful accounts in fiscal year 2016 were $0.5 million. Provisions to the allowance for doubtful accounts in fiscal years 2015 and 2014 were $1.8 million and $0.5 million, respectively.

The composition of inventories is as follows:



	December 31, 2016		December 26, 2015

	(in thousands)
Raw materials and supplies	$	18,893	$	15,998
Work in process	13,681		12,101
Finished products	63,259		65,636
Inventories	$	95,833	$	93,735

The composition of other current assets is as follows:



	December 31, 2016		December 26, 2015

	(in thousands)
Investments	$	3,771	$	20,516
Prepaid income tax	40,705		26,350
Restricted cash	532		271
Other	—		149
Other current assets	$	45,008	$	47,286

The composition of property, plant and equipment, net is as follows:



	December 31, 2016			December 26, 2015

	(in thousands)
Land	$	47,392		$	39,846
Buildings ⁽¹⁾	784,129			713,841
Machinery and equipment	403,123			362,695
Leasehold improvements	47,071			41,477
Furniture and fixtures	24,148			21,783
Computer hardware and software	127,283			113,466
Vehicles	4,118			3,819
Construction in progress	24,703			25,845
Total	1,461,967			1,322,772
Less: Accumulated depreciation	(706,140		)	(644,813		)
Property, plant and equipment, net	$	755,827		$	677,959

⁽¹⁾ The balances as of December 31, 2016 and December 26, 2015 include capital lease buildings. See Note 7, “Long-Term Debt and Capital Lease Obligations.”

Depreciation expense in fiscal years 2016, 2015 and 2014 was $85.0 million, $70.7 million and $70.5 million, respectively.

The composition of other assets is as follows:



	December 31, 2016		December 26, 2015

	(in thousands)
Life insurance policies	$	29,456	$	27,554
Venture capital investments	45,331		32,730
Restricted cash	1,736		1,745
Other	11,907		9,614
Other assets	$	88,430	$	71,643

The composition of other current liabilities is as follows:



	December 31, 2016		December 26, 2015

	(in thousands)
Accrued income taxes	$	25,621	$	12,168
Other	879		376
Other current liabilities	$	26,500	$	12,544

The composition of other long-term liabilities is as follows:



	December 31, 2016		December 26, 2015

	(in thousands)
Long-term pension liability	$	89,984	$	34,604
Accrued executive supplemental life insurance retirement plan and deferred compensation plan	32,880		30,188
Other	36,375		24,270
Other long-term liabilities	$	159,239	$	89,062