Acquisitions and Dispositions - Schedule of Income (Loss) from Discontinued Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Cost of revenues:
Income (loss) before provision (benefit) for income taxes	$ (2,049)	$ 4,683	$ (2,049)	$ 7,835
Provision (benefit) for income taxes	(525)	1,168	(525)	2,024
Net income (loss) from discontinued operations	(1,524)	3,515	(1,524)	5,811
Crane Business [Member]
Revenues:
Total revenues	0	50,086	0	88,099
Cost of revenues:
Total cost of revenues	0	38,541	0	66,963
Gross profit	0	11,545	0	21,136
Selling, general and administrative expenses	0	6,295	0	12,103
Merger and other	132	674	132	1,311
Gain on sales of property and equipment, net	0	49	0	49
Income (loss) from discontinued operations	(132)	4,625	(132)	7,771
Other, net	(1,917)	58	(1,917)	64
Income (loss) before provision (benefit) for income taxes	(2,049)	4,683	(2,049)	7,835
Provision (benefit) for income taxes	(525)	1,168	(525)	2,024
Net income (loss) from discontinued operations	(1,524)	3,515	(1,524)	5,811
Crane Business [Member] | Equipment Rentals [Member]
Revenues:
Total revenues	0	3,426	0	6,431
Cost of revenues:
Total cost of revenues	0	2,737	0	5,485
Crane Business [Member] | Equipment Rentals [Member] | Rentals Other [Member]
Cost of revenues:
Total cost of revenues	0	341	0	570
Crane Business [Member] | Equipment Rentals [Member] | Rental Depreciation [Member]
Cost of revenues:
Total cost of revenues	0	1,824	0	3,720
Crane Business [Member] | Equipment Rentals [Member] | Rental Expense [Member]
Cost of revenues:
Total cost of revenues	0	572	0	1,195
Crane Business [Member] | Used Equipment Sales [Member]
Revenues:
Total revenues	0	5,537	0	8,449
Cost of revenues:
Total cost of revenues	0	4,325	0	6,330
Crane Business [Member] | New Equipment Sales [Member]
Revenues:
Total revenues	0	22,286	0	36,858
Cost of revenues:
Total cost of revenues	0	19,945	0	32,988
Crane Business [Member] | Parts Sales [Member]
Revenues:
Total revenues	0	10,544	0	20,600
Cost of revenues:
Total cost of revenues	0	8,003	0	15,597
Crane Business [Member] | Services Revenues [Member]
Revenues:
Total revenues	0	6,918	0	13,417
Cost of revenues:
Total cost of revenues	0	2,211	0	4,293
Crane Business [Member] | Other [Member]
Revenues:
Total revenues	0	1,375	0	2,344
Cost of revenues:
Total cost of revenues	$ 0	$ 1,320	$ 0	$ 2,270