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Fair Value (Tables)

12 Months Ended

Jan. 31, 2016

Financial Assets Measured at Fair Value on Recurring Basis

The Company’s financial assets that are accounted for at fair value on a recurring basis are presented in the tables below:


		Marketable Securities Fair Value as of
		January 31, 2016
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	46,071			$	—			$	—			$	46,071
Municipal and pre-refunded municipal bonds			—				44,360				—				44,360
Mutual funds, held in rabbi trust			4,363				—				—				4,363
Certificates of deposit			—				2,867				—				2,867

		$	50,434			$	47,227			$	—			$	97,661


		Marketable Securities Fair Value as of
		January 31, 2015
		Level 1				Level 2				Level 3				Total
Assets:
Corporate bonds		$	103,326			$	—			$	—			$	103,326
Municipal and pre-refunded municipal bonds			—				73,495				—				73,495
Mutual funds, held in rabbi trust			3,778				—				—				3,778
Certificates of deposit			—				14,198				—				14,198
Treasury bills			9,156				—				—				9,156
Commercial paper			—				3,940				—				3,940
Federal government agencies			801				—				—				801

		$	117,061			$	91,633			$	—			$	208,694