Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues
Rental	$ 104,241	$ 86,087
Rental related services	24,317	19,669
Rental operations	128,558	105,756
Revenues	16,815	15,439
Total revenues	145,373	121,195
Direct costs of rental operations:
Depreciation of rental equipment	23,874	21,255
Rental related services	18,143	14,604
Other	27,823	19,707
Total direct costs of rental operations	69,840	55,566
Costs of sales	9,044	8,548
Total costs of revenues	78,884	64,114
Gross profit	66,489	57,081
Selling and administrative expenses	39,127	33,137
Income from operations	27,362	23,944
Other income (expense):
Interest expense	(2,820)	(1,783)
Foreign currency exchange gain (loss)	13	(55)
Income before provision for income taxes	24,555	22,106
Provision for income taxes	5,762	4,708
Net income	$ 18,793	$ 17,398
Earnings per share:
Basic	$ 0.77	$ 0.72
Diluted	$ 0.77	$ 0.71
Shares used in per share calculation:
Basic	24,285	24,153
Diluted	24,534	24,512
Cash dividends declared per share	$ 0.455	$ 0.435
Sales [Member]
Revenues
Revenues	$ 15,876	$ 14,611
Other [Member]
Revenues
Revenues	$ 939	$ 828