Segment and Related Information (Tables)

9 Months Ended

Sep. 30, 2022

Segment Reporting [Abstract]

Schedule of Revenue by Geographic Region

The following tables present certain information for operations:

Total Revenue by Geographic Region: 

	Three Months Ended September 30,								Nine Months Ended September 30,
	2022				2021				2022				2021
Americas	$	57,875	52.7	%	$	51,362	53.1	%	$	166,666	52.4	%	$	147,701	51.7	%
Middle East/Asia/Pacific	25,378		23.2	%	21,621		22.4	%	75,892		23.9	%	63,320		22.2	%
Europe	16,284		14.9	%	13,897		14.4	%	46,220		14.6	%	44,942		15.8	%
Africa	10,034		9.2	%	9,724		10.1	%	28,759		9.1	%	29,274		10.3	%
Total	$	109,571	100.0	%	$	96,604	100.0	%	$	317,537	100.0	%	$	285,237	100.0	%

Consulting Fee Revenue by Geographic Region:

	Three Months Ended September 30,								Nine Months Ended September 30,
	2022				2021				2022				2021
Americas	$	37,896	44.5	%	$	34,510	44.8	%	$	113,572	44.7	%	$	100,996	44.5	%
Middle East/Asia/Pacific	23,436		27.5	%	21,345		27.7	%	72,305		28.4	%	62,100		27.3	%
Europe	14,500		17.0	%	12,328		16.0	%	41,618		16.4	%	36,968		16.3	%
Africa	9,310		10.9	%	8,878		11.5	%	26,767		10.5	%	27,094		11.9	%
Total	$	85,142	99.9	%	$	77,061	100.0	%	$	254,262	100.0	%	$	227,158	100.0	%

Schedule of Operating Profit (Loss)

Operating Profit (Loss) by Geographic Region:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Americas (1)	$	6,436	$	8,139	$	22,288	$	20,879
Middle East/Asia/Pacific (1)	4,867		2,872		11,687		6,054
Europe (1)	3,770		2,623		7,785		6,517
Africa	2,520		1,032		5,695		5,117
Corporate (2)	(14,271)		(10,339)		(38,643)		(31,496)
Total	$	3,322	$	4,327	$	8,812	$	7,071

    (1) includes Hill's share of profit (loss) of equity method affiliates on the Consolidated Statements of Operations.

(2) includes foreign exchange losses of $803 and $511 for the three months ended September 30, 2022 and 2021, respectively and 3,730 and 2,751 for the nine months ended September 30, 2022 and 2021, respectively.

Schedule of Depreciation and Amortization Expense

Depreciation and Amortization Expense:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
Project Management	$	349	$	6	$	1,049	$	769
Corporate	250		561		735		1,087
Total	$	599	$	567	$	1,784	$	1,856

Schedule of Revenue by Client Type

Total Revenue by Client Type: 

	Three Months Ended September 30,								Nine Months Ended September 30,
	2022				2021				2022				2021
U.S. federal government	$	4,870	4.4	%	$	3,506	3.6	%	$	12,576	4.0	%	$	11,636	4.1	%
U.S. state, regional and local governments	35,922		32.8	%	30,648		31.7	%	103,331		32.5	%	90,934		31.9	%
Foreign governments	23,710		21.6	%	23,401		24.2	%	72,000		22.7	%	75,137		26.3	%
Private sector	45,069		41.2	%	39,049		40.5	%	129,630		40.8	%	107,530		37.7	%
Total	$	109,571	100.0	%	$	96,604	100.0	%	$	317,537	100.0	%	$	285,237	100.0	%

Schedule of Property, Plant and Equipment, Net by Geographic Location

Property, Plant and Equipment, Net, by Geographic Location:

	September 30, 2022		December 31, 2021
Americas	$	6,598	$	7,146
Middle East/Asia/Pacific	776		745
Europe	643		586
Africa	399		418
Total	$	8,416	$	8,895