Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 18,076	$ 19,063
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation and Amortization	39,982	37,645
Provision for Doubtful Accounts	1,014	911
Share-Based Compensation	1,984	2,255
Gain on Sale of Used Rental Equipment	(6,444)	(6,256)
Gain on Sale of Property, Plant and Equipment	(812)
Foreign Currency Loss	10	52
Change In:
Accounts Receivable	(2,448)	4,059
Prepaid Expenses and Other Assets	(2,287)	(168)
Accounts Payable and Accrued Liabilities	2,236	6,096
Deferred Income	2,080	(988)
Deferred Income Taxes	1,781	3,570
Net Cash Provided by Operating Activities	55,172	66,239
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of Rental Equipment	(68,105)	(56,241)
Purchase of Property, Plant and Equipment	(6,101)	(4,156)
Proceeds from Sale of Used Rental Equipment	13,757	14,373
Proceeds from Sale of Property, Plant and Equipment	2,501
Net Cash Used in Investing Activities	(57,948)	(46,024)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net Repayments Under Bank Lines of Credit	(3,003)	(23,125)
Borrowing Under Series B Senior Notes	40,000
Principal Payment on Series A Senior Notes	(20,000)
Proceeds from the Exercise of Stock Options	302	13,494
Excess Tax Benefit from Exercise and Disqualifying Disposition of Stock Options	1,173	1,398
Payment of Dividends	(12,833)	(12,109)
Taxes Paid Related to Net Share Settlement of Stock Awards	(3,378)	(778)
Net Cash Provided by (Used in) Financing Activities	2,261	(21,120)
Effect of Exchange Rate Changes on Cash	26
Net Decrease in Cash	(489)	(905)
Cash Balance, beginning of period	1,630	1,612
Cash Balance, end of period	1,141	707
Interest Paid, during the period	4,198	4,331
Net Income Taxes Paid, during the period	8,526	6,779
Dividends Accrued During the Period, not yet paid	6,425	6,327
Rental Equipment Acquisitions, not yet paid	$ 12,033	$ 3,887