Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Summary of Fair Value Measurements for Available for Sale Securities

Following is a summary of fair value measurements for AFS securities as of December 31, 2016 and December 26, 2015:

	Fair Value		Level 1	Level 2	Level 3
	(Amounts are in thousands)
December 31, 2016	$	6,738,618	1,286,625	5,451,993	—
December 26, 2015	6,602,934		1,049,791	5,553,143	—