Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 36,375	$ 23,736
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation and Amortization	49,746	46,269
Provision for Doubtful Accounts	1,373	1,225
Non-Cash Stock-Based Compensation	3,709	3,155
Gain on Sale of Rental Equipment	(9,713)	(8,144)
Change In:
Accounts Receivable	(14,526)	(19,540)
Income Taxes Receivable	6,131	5,147
Prepaid Expenses and Other Assets	(109)	(1,346)
Accounts Payable and Accrued Liabilities	10,467	6,750
Deferred Income	1,641	7,396
Deferred Income Taxes	19,401	1,461
Net Cash Provided by Operating Activities	104,495	66,109
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of Rental Equipment	(120,699)	(93,408)
Purchase of Property, Plant and Equipment	(15,181)	(5,197)
Proceeds from Sale of Used Rental Equipment	21,502	19,791
Net Cash Used in Investing Activities	(114,378)	(78,814)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Borrowings (Payments) Under Bank Lines of Credit	(64,067)	37,166
Borrowings Under Private Placement	100,000
Principal Payments on Senior Notes	(12,000)	(12,000)
Proceeds from the Exercise of Stock Options	1,848	2,454
Excess Tax Benefit from Exercise and Disqualifying Disposition of Stock Options	408	395
Payment of Dividends	(16,644)	(16,001)
Net Cash Provided by Financing Activities	9,545	12,014
Net Decrease in Cash	(338)	(691)
Cash Balance, beginning of period	990	1,187
Cash Balance, end of period	652	496
Interest Paid, during the period	3,705	4,530
Income Taxes Paid (Refunds Received), during the period	(2,696)	8,030
Dividends Accrued	5,772	5,435
Rental Equipment Acquisitions, not yet paid	$ 5,545	$ 10,592