Marketable Securities

3 Months Ended

Dec. 27, 2019

Investments, Debt and Equity Securities [Abstract]

MARKETABLE SECURITIES

.    MARKETABLE SECURITIES

The Company's portfolio of available-for-sale marketable securities consists of the following (in millions):

    

	Current				Noncurrent
Available for sale:	December 27, 2019		September 27, 2019		December 27, 2019		September 27, 2019
U.S. Treasury and government	$	58.6	$	34.2	$	27.7	$	20.0
Corporate bonds and notes	94.9		66.2		10.5		5.9
Municipal bonds	108.7		102.9		—		1.7
Total	$	262.2	$	203.3	$	38.2	$	27.6

The contractual maturities of noncurrent available-for-sale marketable securities were due within two years or less. There were gross unrealized gains of $0.1 million on U.S. Treasury securities, $0.1 million on corporate bonds and notes, and $0.1 million on municipal bonds as of December 27, 2019, and $0.1 million in gross unrealized losses on municipal bonds as of September 27, 2019.