Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues
Rental	$ 474,336	$ 389,663	$ 333,988
Rental related services	138,160	94,963	75,210
Rental operations	612,496	484,626	409,198
Total revenues	831,842	635,665	534,591
Direct costs of rental operations:
Depreciation of rental equipment	88,912	80,425	75,445
Rental related services	96,628	68,846	55,722
Other	114,942	104,358	79,577
Total direct costs of rental operations	300,482	253,629	210,744
Costs of sales	137,727	91,828	76,525
Total costs of revenues	438,209	345,457	287,269
Gross profit	393,633	290,208	247,322
Selling and administrative expenses	(207,539)	(142,914)	(123,058)
Other income	3,618
Income from operations	189,712	147,294	124,264
Interest expense	(40,560)	(12,230)	(8,244)
Foreign currency exchange gain (loss)	310	(378)	(210)
Income from continuing operations before provision for income taxes	149,462	134,686	115,810
Provision for income taxes from continuing operations	37,610	31,377	30,725
Income from continuing operations	111,852	103,309	85,085
Discontinued operations:
Income from discontinued operations before provision for income taxes	1,709	15,334	5,946
Provision for income taxes from discontinued operations	453	3,505	1,326
Gain on sale of discontinued operations, net of tax	61,513
Income from discontinued operations	62,769	11,829	4,620
Net income	$ 174,621	$ 115,138	$ 89,705
Earnings per share from continuing operations:
Basic	$ 4.57	$ 4.24	$ 3.51
Diluted	4.56	4.21	3.47
Earnings per share from discontinued operations:
Basic	2.57	0.49	0.19
Diluted	2.56	0.48	0.19
Earnings per share:
Basic	7.14	4.73	3.7
Diluted	$ 7.12	$ 4.7	$ 3.66
Shares used in per share calculation:
Basic	24,469	24,353	24,220
Diluted	24,529	24,519	24,515
Cash dividends declared per share	$ 1.86	$ 1.82	$ 1.74
Sales [Member]
Revenues
Revenues	$ 207,165	$ 147,720	$ 122,305
Other [Member]
Revenues
Revenues	$ 12,181	$ 3,319	$ 3,088