Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Goodwill by Segment and Changes in Carrying Amount of Goodwill

A summary of the goodwill by segment and the changes in the carrying amount of goodwill is shown in the following table (in thousands).

							Project
	Product			Research			Consulting		Total
Balance at January 1, 2017	$	2,343		$	70,850		$	—	$	73,193
Translation adjustments		95			2,881			—		2,976
Balance at December 31, 2017		2,438			73,731			—		76,169
Acquisitions		10,178			—			—		10,178
Translation adjustments		(98	)		(1,084	)		—		(1,182	)
Balance at December 31, 2018	$	12,518		$	72,647		$	—	$	85,165

Summary of Intangible Assets

A summary of Forrester’s intangible assets is as follows (in thousands):

	December 31, 2018
	Gross				Net
	Carrying		Accumulated		Carrying
	Amount		Amortization		Amount
Amortizable intangible assets:
Customer relationships	$	32,823	$	31,604	$	1,219
Technology		3,610		295		3,315
Trade name		443		26		417
Total	$	36,876	$	31,925	$	4,951

	December 31, 2017
	Gross				Net
	Carrying		Accumulated		Carrying
	Amount		Amortization		Amount
Amortizable intangible assets:
Customer relationships	$	31,735	$	31,003	$	732
Research content		1,083		1,083		—
Total	$	32,818	$	32,086	$	732

Summary of Estimated Intangible Assets Amortization Expense

Estimated intangible asset amortization expense for each of the five succeeding fiscal years is as follows (in thousands):

Year ending December 31, 2019	$	865
Year ending December 31, 2020		865
Year ending December 31, 2021		865
Year ending December 31, 2022		865
Year ending December 31, 2023		693
Thereafter		798
Total	$	4,951