Goodwill and Intangible Assets (Tables)

12 Months Ended

Apr. 30, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Changes in Carrying Value of Goodwill by Reportable Segment

Changes in the carrying value of goodwill by reportable segment were as follows:

	Executive Search
	North America			EMEA			Asia Pacific		Subtotal			Advisory			RPO & Professional Search			Consolidated
	(in thousands)
Balance as of May 1, 2017	$	46,201		$	44,976		$	972	$	92,149		$	457,241		$	27,475		$	576,865
Exchange rate fluctuations		1,556			2,525			—		4,081			928			2,348			7,357
Balance as of April 30, 2018		47,757			47,501			972		96,230			458,169			29,823			584,222
Exchange rate fluctuations		(1,186	)		(2,021	)		—		(3,207	)		(808	)		(1,909	)		(5,924	)
Balance as of April 30, 2019	$	46,571		$	45,480		$	972	$	93,023		$	457,361		$	27,914		$	578,298

Intangible Assets

Intangible assets include the following:

	April 30, 2019								April 30, 2018
	(in thousands)
Amortized intangible assets:	Gross		Accumulated Amortization			Net			Gross		Accumulated Amortization			Net
Customer lists	$	125,099	$	(53,352	)	$	71,747		$	125,099	$	(42,248	)	$	82,851
Intellectual property		33,100		(22,045	)		11,055			33,100		(20,112	)		12,988
Proprietary databases		4,256		(4,053	)		203			4,256		(3,628	)		628
Non-compete agreements		910		(893	)		17			910		(873	)		37
Trademarks		3,986		(3,986	)		—			3,986		(3,986	)		—
Total	$	167,351	$	(84,329	)		83,022		$	167,351	$	(70,847	)		96,504
Unamortized intangible assets:
Trademarks							—								106,000
Exchange rate fluctuations							(74	)							712
Total Intangible assets						$	82,948							$	203,216

Estimated Annual Amortization Expense Related to Amortizing Intangible Assets

Estimated annual amortization expense related to amortizing intangible assets is as follows:

Year Ending April 30,	Estimated Annual Amortization Expense
	(in thousands)
2020	$	13,204
2021		13,071
2022		13,060
2023		11,208
2024		8,731
Thereafter		23,748
	$	83,022