Condensed Consolidated Statements Of Income (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
REVENUES
Rental	$ 57,118	$ 47,851	$ 111,144	$ 92,984
Rental Related Services	9,387	8,201	17,879	15,317
Rental Operations	66,505	56,052	129,023	108,301
Sales	12,489	9,958	22,423	18,895
Other	536	513	1,057	1,057
Total Revenues	79,530	66,523	152,503	128,253
COSTS AND EXPENSES
Depreciation of Rental Equipment	14,842	13,786	29,437	27,556
Rental Related Services	7,139	6,060	13,880	11,386
Other	10,665	9,777	20,205	18,749
Total Direct Costs of Rental Operations	32,646	29,623	63,522	57,691
Costs of Sales	7,525	6,372	13,770	12,252
Total Costs of Revenues	40,171	35,995	77,292	69,943
Gross Profit	39,359	30,528	75,211	58,310
Selling and Administrative Expenses	18,645	16,949	37,203	32,360
Income from Operations	20,714	13,579	38,008	25,950
Interest Expense	1,954	1,506	3,436	3,015
Income Before Provision for Income Taxes	18,760	12,073	34,572	22,935
Provision for Income Taxes	7,354	4,685	13,552	8,899
Net Income	$ 11,406	$ 7,388	$ 21,020	$ 14,036
Earnings Per Share:
Basic	$ 0.47	$ 0.31	$ 0.87	$ 0.59
Diluted	$ 0.46	$ 0.31	$ 0.85	$ 0.58
Shares Used in Per Share Calculation:
Basic	24,340	23,924	24,299	23,866
Diluted	24,742	24,201	24,700	24,136
Cash Dividends Declared Per Share	$ 0.230	$ 0.225	$ 0.460	$ 0.450