Marketable Investments (Tables)

6 Months Ended

Jun. 30, 2014

Investments Debt And Equity Securities [Abstract]

Summary of Company's Marketable Investments

The following table summarizes the Company’s marketable investments (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Market Value
June 30, 2014
Available-for-sale securities
State and municipal obligations	$	4,203	$	3	$	—		$	4,206
Federal agency and corporate obligations		76,735		116		(33	)		76,818
Total	$	80,938	$	119	$	(33	)	$	81,024

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Market Value
December 31, 2013
Available-for-sale securities
State and municipal obligations	$	6,809	$	5	$	—		$	6,814
Federal agency and corporate obligations		74,179		112		(92	)		74,199
Total	$	80,988	$	117	$	(92	)	$	81,013

Summary of Maturity Periods of the Marketable Securities

The following table summarizes the maturity periods of the marketable securities in the Company’s portfolio as of June 30, 2014 (in thousands).

	FY 2014		FY2015		FY2016		Thereafter		Total
State and municipal obligations	$	2,201	$	2,005	$	—	$	—	$	4,206
Federal agency and corporate obligations		6,878		42,026		18,272		9,642		76,818
Total	$	9,079	$	44,031	$	18,272	$	9,642	$	81,024

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 June 30, 2014
	Less Than 12 Months				12 Months or Greater
	Market Value		Unrealized Losses		Market Value		Unrealized Losses
State and municipal bonds	$	—	$	—	$	—	$	—
Federal agency and corporate obligations		15,426		33		—		—
Total	$	15,426	$	33	$	—	$	—
	As of December 31, 2013
	Less Than 12 Months				12 Months or Greater
	Market Value		Unrealized Losses		Market Value		Unrealized Losses
State and municipal bonds	$	—	$	—	$	—	$	—
Federal agency and corporate obligations		30,645		92		—		—
Total	$	30,645	$	92	$	—	$	—

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 investments) measured at fair value on a recurring basis as of June 30, 2014 and December 31, 2013 (in thousands):

	As of June 30, 2014
	Level 1		Level 2		Level 3		Total
Money market funds (1)	$	1,733	$	—	$	—	$	1,733
State and municipal obligations		—		4,206		—		4,206
Federal agency and corporate obligations		—		76,818		—		76,818
Total	$	1,733	$	81,024	$	—	$	82,757
	As of December 31, 2013
	Level 1		Level 2		Level 3		Total
Money market funds (1)	$	6,897	$	—	$	—	$	6,897
State and municipal obligations		—		6,814		—		6,814
Federal agency and corporate obligations (2)		—		80,449		—		80,449
Total	$	6,897	$	87,263	$	—	$	94,160

(1) Included in cash and cash equivalents.

(2) $6.2 million are included in cash and cash equivalents at December 31, 2013 as original maturities at the time of purchase were 90 days or less.