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Marketable Investments (Tables)

12 Months Ended

Dec. 31, 2015

Investments Debt And Equity Securities [Abstract]

Summary of Company's Marketable Investments

The following table summarizes the Company’s marketable investments, all of which are classified as available-for-sale (in thousands):

		As of  December 31, 2015
						Gross				Gross
		Amortized				Unrealized				Unrealized				Market
		Cost				Gains				Losses				Value
Corporate obligations		$	47,939			$	—			$	(164	)		$	47,775

		As of December 31, 2014
						Gross				Gross
		Amortized				Unrealized				Unrealized				Market
		Cost				Gains				Losses				Value
Corporate obligations		$	55,005			$	13			$	(133	)		$	54,885

Summary of Maturity Periods of Marketable Securities

The following table summarizes the maturity periods of the marketable securities in the Company’s portfolio as of December 31, 2015.

		FY 2016				FY 2017				FY 2018				Total
Corporate obligations		$	19,305			$	23,490			$	4,980			$	47,775

Summary of Gross Unrealized Losses and Market Value of Available-for-Sale Securities with Unrealized Losses

The following table shows the gross unrealized losses and market value of Forrester’s available-for-sale securities with unrealized losses that are not deemed to be other-than-temporary, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands):

		As of  December 31, 2015
		Less Than 12 Months								12 Months or Greater
		Market				Unrealized				Market				Unrealized
		Value				Losses				Value				Losses
Corporate obligations		$	45,748			$	158			$	2,027			$	6

		As of December 31, 2014
		Less Than 12 Months								12 Months or Greater
		Market				Unrealized				Market				Unrealized
		Value				Losses				Value				Losses
Corporate obligations		$	38,175			$	133			$	—			$	—

Summary of Company's Fair Value Hierarchy for its Financial Assets

The following table represents the Company’s fair value hierarchy for its financial assets (cash equivalents and marketable investments) measured at fair value on a recurring basis (in thousands):

		As of  December 31, 2015
		Level 1				Level 2				Level 3				Total
Money market funds (1)		$	325			$	—			$	—			$	325
Corporate obligations			—				47,775				—				47,775
Total		$	325			$	47,775			$	—			$	48,100

		As of December 31, 2014
		Level 1				Level 2				Level 3				Total
Money market funds (1)		$	1,794			$	—			$	—			$	1,794
Corporate obligations			—				54,885				—				54,885
Total		$	1,794			$	54,885			$	—			$	56,679

(1) Included in cash and cash equivalents.

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-Publisher FASB
-Name Accounting Standards Codification
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