Fair Value Measurements (Tables)

6 Months Ended

Jun. 18, 2017

Fair Value Disclosures [Abstract]

Carrying Amounts and Fair Values of Certain Assets

The fair values of the Company’s cash equivalents and investments in marketable securities are based on quoted prices in active markets for identical assets. The following tables summarize the carrying amounts and fair values of certain assets at June 18, 2017 and January 1, 2017:

	At June 18, 2017
			Fair Value Estimated Using
	Carrying		Level 1		Level 2		Level 3
	Amount		Inputs		Inputs		Inputs
Cash equivalents	$	34,153	$	34,153	$	—	$	—
Restricted cash equivalents		69,139		69,139		—		—
Investments in marketable securities		6,943		6,943		—		—
	At January 1, 2017
			Fair Value Estimated Using
	Carrying		Level 1		Level 2		Level 3
	Amount		Inputs		Inputs		Inputs
Cash equivalents	$	7,017	$	7,017	$	—	$	—
Restricted cash equivalents		69,113		69,113		—		—
Investments in marketable securities		7,260		7,260		—		—

Schedule of Estimated Fair Value

Management estimated the approximate fair values of the 2012 fixed rate notes and the 2015 fixed rate notes as follows (in thousands):

	June 18, 2017				January 1, 2017
	Principal Amount		Fair Value		Principal Amount		Fair Value
2012 Seven-Year Fixed Rate Notes	$	910,252	$	918,444	$	916,650	$	932,233
2015 Five-Year Fixed Rate Notes		493,750		493,256		495,000		485,595
2015 Ten-Year Fixed Rate Notes		790,000		797,110		792,000		765,864