Geographic Segments - Schedule of Segment Reporting (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 108,454	$ 108,227	$ 103,808	$ 94,317	$ 97,335	$ 93,257	$ 94,861	$ 99,173	$ 414,806	$ 384,626	$ 455,469
Depreciation and amortization									34,020	35,312	40,974
Income (loss) before taxes									10,429	(114,989)	(65,644)
Total long-lived assets	326,076				339,529				326,076	339,529
Total assets	1,206,565				1,192,510				1,206,565	1,192,510
Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization									34,020	35,312	40,974
Income (loss) before taxes									10,429	(114,989)	(65,644)
Intercompany
Segment Reporting Information [Line Items]
Revenues									19,915	17,411	29,107
Corporate
Segment Reporting Information [Line Items]
Depreciation and amortization									3,082	2,635	2,374
Income (loss) before taxes									(64,800)	(102,538)	(53,852)
Eliminations
Segment Reporting Information [Line Items]
Revenues									(19,915)	(17,411)	(29,107)
Total long-lived assets	(371,938)				(395,938)				(371,938)	(395,938)
Total assets	(526,142)				(458,682)				(526,142)	(458,682)
Products | Operating Segments
Segment Reporting Information [Line Items]
Revenues									303,279	265,052	351,132
Products | Operating Segments | Transferred at Point in Time
Segment Reporting Information [Line Items]
Revenues									218,330	204,472	294,118
Products | Operating Segments | Transferred Over Time
Segment Reporting Information [Line Items]
Revenues									84,949	60,580	57,014
Technical Advisory | Operating Segments
Segment Reporting Information [Line Items]
Revenues									56,431	56,615	50,925
Reconditioning | Operating Segments
Segment Reporting Information [Line Items]
Revenues									15,587	15,799	11,020
Total Services (excluding Leasing) | Operating Segments
Segment Reporting Information [Line Items]
Revenues									72,018	72,414	61,945
Leasing | Operating Segments
Segment Reporting Information [Line Items]
Revenues									39,509	47,160	42,392
Services | Operating Segments
Segment Reporting Information [Line Items]
Revenues									111,527	119,574	104,337
Western Hemisphere
Segment Reporting Information [Line Items]
Revenues									239,820	249,885	309,689
Western Hemisphere | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization									21,737	23,314	30,441
Income (loss) before taxes									19,882	(29,823)	(18,099)
Total long-lived assets	379,776				412,624				379,776	412,624
Total assets	732,716				708,723				732,716	708,723
Western Hemisphere | Intercompany
Segment Reporting Information [Line Items]
Revenues									12,856	13,343	27,554
Western Hemisphere | Products | Operating Segments
Segment Reporting Information [Line Items]
Revenues									162,067	170,282	217,085
Western Hemisphere | Products | Operating Segments | Transferred at Point in Time
Segment Reporting Information [Line Items]
Revenues									108,006	135,687	215,907
Western Hemisphere | Products | Operating Segments | Transferred Over Time
Segment Reporting Information [Line Items]
Revenues									54,061	34,595	1,178
Western Hemisphere | Technical Advisory | Operating Segments
Segment Reporting Information [Line Items]
Revenues									31,962	29,973	28,053
Western Hemisphere | Reconditioning | Operating Segments
Segment Reporting Information [Line Items]
Revenues									10,733	10,985	8,846
Western Hemisphere | Total Services (excluding Leasing) | Operating Segments
Segment Reporting Information [Line Items]
Revenues									42,695	40,958	36,899
Western Hemisphere | Leasing | Operating Segments
Segment Reporting Information [Line Items]
Revenues									22,202	25,302	28,151
Western Hemisphere | Services | Operating Segments
Segment Reporting Information [Line Items]
Revenues									64,897	66,260	65,050
Eastern Hemisphere
Segment Reporting Information [Line Items]
Revenues									118,184	107,055	98,483
Eastern Hemisphere | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization									4,163	4,578	4,096
Income (loss) before taxes									28,045	20,495	1,379
Total long-lived assets	246,854				256,899				246,854	256,899
Total assets	818,803				788,171				818,803	788,171
Eastern Hemisphere | Intercompany
Segment Reporting Information [Line Items]
Revenues									1,267	2,010	772
Eastern Hemisphere | Products | Operating Segments
Segment Reporting Information [Line Items]
Revenues									86,057	71,719	69,664
Eastern Hemisphere | Products | Operating Segments | Transferred at Point in Time
Segment Reporting Information [Line Items]
Revenues									65,416	49,216	43,260
Eastern Hemisphere | Products | Operating Segments | Transferred Over Time
Segment Reporting Information [Line Items]
Revenues									20,641	22,503	26,404
Eastern Hemisphere | Technical Advisory | Operating Segments
Segment Reporting Information [Line Items]
Revenues									15,100	16,499	15,313
Eastern Hemisphere | Reconditioning | Operating Segments
Segment Reporting Information [Line Items]
Revenues									3,409	3,188	1,958
Eastern Hemisphere | Total Services (excluding Leasing) | Operating Segments
Segment Reporting Information [Line Items]
Revenues									18,509	19,687	17,271
Eastern Hemisphere | Leasing | Operating Segments
Segment Reporting Information [Line Items]
Revenues									12,351	13,639	10,776
Eastern Hemisphere | Services | Operating Segments
Segment Reporting Information [Line Items]
Revenues									30,860	33,326	28,047
Asia-Pacific
Segment Reporting Information [Line Items]
Revenues									76,717	45,097	76,404
Asia-Pacific | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization									5,038	4,785	4,063
Income (loss) before taxes									27,302	(3,123)	4,928
Total long-lived assets	71,384				65,944				71,384	65,944
Total assets	$ 181,188				$ 154,298				181,188	154,298
Asia-Pacific | Intercompany
Segment Reporting Information [Line Items]
Revenues									5,792	2,058	781
Asia-Pacific | Products | Operating Segments
Segment Reporting Information [Line Items]
Revenues									55,155	23,051	64,383
Asia-Pacific | Products | Operating Segments | Transferred at Point in Time
Segment Reporting Information [Line Items]
Revenues									44,908	19,569	34,951
Asia-Pacific | Products | Operating Segments | Transferred Over Time
Segment Reporting Information [Line Items]
Revenues									10,247	3,482	29,432
Asia-Pacific | Technical Advisory | Operating Segments
Segment Reporting Information [Line Items]
Revenues									9,369	10,143	7,559
Asia-Pacific | Reconditioning | Operating Segments
Segment Reporting Information [Line Items]
Revenues									1,445	1,626	216
Asia-Pacific | Total Services (excluding Leasing) | Operating Segments
Segment Reporting Information [Line Items]
Revenues									10,814	11,769	7,775
Asia-Pacific | Leasing | Operating Segments
Segment Reporting Information [Line Items]
Revenues									4,956	8,219	3,465
Asia-Pacific | Services | Operating Segments
Segment Reporting Information [Line Items]
Revenues									$ 15,770	$ 19,988	$ 11,240