Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
REVENUES
Rental	$ 60,964	$ 52,674	$ 172,108	$ 145,658
Rental Related Services	10,737	10,401	28,616	25,718
Rental Operations	71,701	63,075	200,724	171,376
Sales	32,783	19,640	55,206	38,535
Other	477	489	1,534	1,546
Total Revenues	104,961	83,204	257,464	211,457
COSTS AND EXPENSES
Depreciation of Rental Equipment	15,357	14,109	44,794	41,665
Rental Related Services	8,321	8,335	22,201	19,721
Other	10,274	12,097	30,479	30,846
Total Direct Costs of Rental Operations	33,952	34,541	97,474	92,232
Costs of Sales	23,622	14,613	37,392	26,865
Total Costs of Revenues	57,574	49,154	134,866	119,097
Gross Profit	47,387	34,050	122,598	92,360
Selling and Administrative Expenses	20,081	16,569	57,284	48,929
Income from Operations	27,306	17,481	65,314	43,431
Interest Expense	2,051	1,632	5,487	4,647
Income Before Provision for Income Taxes	25,255	15,849	59,827	38,784
Provision for Income Taxes	9,900	6,149	23,452	15,048
Net Income	$ 15,355	$ 9,700	$ 36,375	$ 23,736
Earnings Per Share:
Basic	$ 0.63	$ 0.41	$ 1.50	$ 0.99
Diluted	$ 0.62	$ 0.40	$ 1.47	$ 0.98
Shares Used in Per Share Calculation:
Basic	24,362	23,936	24,320	23,884
Diluted	24,719	24,173	24,702	24,138
Cash Dividends Declared Per Share	$ 0.230	$ 0.225	$ 0.690	$ 0.675