RESTRICTED CASH AND INVESTMENTS

Restricted cash and investments consist principally of collateral that has been provided or pledged to insurance carriers for workers' compensation and state workers' compensation programs. Our insurance carriers and certain state workers' compensation programs require us to collateralize a portion of our workers' compensation obligation. The collateral typically takes the form of cash and cash equivalents and highly rated investment grade securities, primarily in municipal debt securities, corporate debt securities, and asset-backed securities. The majority of our collateral obligations are held in a trust at the Bank of New York Mellon ("Trust"). Our investments have not resulted in any other-than-temporary impairments.

The following is a summary of our restricted cash and investments (in thousands):



	September 25, 2015		December 26, 2014
Cash collateral held by insurance carriers	$	22,717	$	22,639
Cash and cash equivalents held in Trust	31,227		43,856
Investments held in Trust	116,319		90,095
Other (1)	11,647		11,836
Total restricted cash and investments	$	181,910	$	168,426


(1)	Primarily consists of deferred compensation plan accounts, which are comprised of mutual funds classified as available-for-sale securities.

The following tables present fair value disclosures for our held-to-maturity investments, which are carried at amortized cost (in thousands):



	September 25, 2015
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Municipal debt securities	$	62,289	$	918	$	(19	)	$	63,188
Corporate debt securities	44,978		284		(81		)	45,181
Asset-backed securities	9,052		107		(9		)	9,150
	$	116,319	$	1,309	$	(109	)	$	117,519



	December 26, 2014
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Municipal debt securities	$	52,406	$	882	$	(92	)	$	53,196
Corporate debt securities	27,715		179		(144		)	27,750
Asset-backed securities	9,974		157		(11		)	10,120
	$	90,095	$	1,218	$	(247	)	$	91,066

The amortized cost and fair value by contractual maturity of our held-to-maturity investments are as follows (in thousands):



	September 25, 2015
	Amortized Cost		Fair Value
Due in one year or less	$	10,503	$	10,577
Due after one year through five years	62,654		63,118
Due after five years through ten years	43,162		43,824
	$	116,319	$	117,519

Actual maturities may differ from contractual maturities because the issuers of certain debt securities have the right to call or prepay their obligations without penalty. We have no significant concentrations of counterparties in our held-to-maturity investment portfolio.