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Investments: (Tables)

6 Months Ended

Jun. 28, 2014

Summary of marketable securities classified as available-for-sale securities

	June 28, 2014				December 28, 2013
	Cost		Fair Value		Cost		Fair Value
Equity securities	$	845,200	$	839,900	$	743,100	$	736,500

Schedule of the Company's unrealized gains and losses for marketable securities classified as available-for-sale securities in accumulated other comprehensive loss

	June 28, 2014			December 28, 2013
Unrealized gains	$	19,300		$	6,800
Unrealized losses	(24,600		)	(13,400		)
Net unrealized losses	$	(5,300	)	$	(6,600	)

Schedule of the Company's realized gains and losses recognized on sales of available-for-sale marketable securities

	Three Months Ended					Six Months Ended
	June 28, 2014			June 29, 2013		June 28, 2014			June 29, 2013
Realized gains	$	4,600		$	—	$	26,800		$	—
Realized losses	(13,500		)	—		(26,300		)	—
Net realized gains/(losses)	$	(8,900	)	$	—	$	500		$	—

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References+ Details