CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 8,301	$ 18,085
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred financing costs write-off		123
Provision for doubtful accounts	955	1,212
Amortization of deferred financing costs	455	505
Amortization of long-term liabilities		13
Share-based compensation expense	2,682	3,404
Depreciation and amortization	17,492	17,335
Gain on sale of rental fleet	(1,444)	(1,425)
Loss on disposal of property, plant and equipment	26	18
Deferred income taxes	4,386	5,058
Foreign currency exchange	3	(1)
Changes in certain assets and liabilities:
Receivables	3,365	16,180
Inventories	(154)	76
Other assets	1,381	(1,394)
Accounts payable	9,490	(1,741)
Accrued liabilities	(13,715)	(18,665)
Net cash provided by operating activities	33,223	38,783
Cash flows from investing activities:
Cash paid for business acquired, net of cash acquired	(4,808)
Additions to rental fleet, excluding acquisitions	(10,051)	(23,016)
Proceeds from sale of rental fleet	3,474	3,338
Additions to property, plant and equipment, excluding acquisitions	(4,174)	(2,919)
Proceeds from sale of property, plant and equipment	15	49
Net cash used in investing activities	(15,544)	(22,548)
Cash flows from financing activities:
Net borrowings under lines of credit	2,100	203
Deferred financing costs		(3,254)
Principal payments on finance lease obligations	(3,204)	(2,586)
Issuance of common stock	753	1,690
Dividend payments	(13,575)	(12,426)
Purchase of treasury stock	(900)	(1,057)
Net cash used in financing activities	(14,826)	(17,430)
Effect of exchange rate changes on cash	(111)	(114)
Net increase (decrease) in cash	2,742	(1,309)
Cash and cash equivalents at beginning of period	8,053	5,605
Cash and cash equivalents at end of period	10,795	4,296
Supplemental disclosure of cash flow information:
Cash paid for interest	12,608	14,276
Cash paid for income and franchise taxes	1,913	2,020
Equipment and other acquired through finance lease obligations	4,343	1,609
Capital expenditures accrued or payable	$ 5,053	$ 8,012