Interim Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating Activities
Net income	$ 53,338	$ 56,897
Adjustment to reconcile net income to net cash provided by operating activities:
Provision for doubtful accounts	280	(132)
Depreciation - Property, plant and equipment	10,583	9,388
Depreciation - Rental equipment	6,770	4,790
Amortization of intangibles	3,081	2,630
Amortization of debt issuance costs	166	166
Stock-based compensation expense	2,341	1,810
Provision for deferred income tax (benefit) expense	(2,549)	1,160
Gain on sale of property, plant and equipment	(732)	(298)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(11,263)	(24,916)
Inventories	(8,413)	(31,521)
Rental equipment	(18,970)	(16,758)
Prepaid expenses and other assets	(5,377)	(1,887)
Trade accounts payable and accrued liabilities	9,481	15,797
Income taxes payable	1,738	(8,887)
Long-term tax payable	590	(4,969)
Other assets and long-term liabilities	3,146	317
Net cash provided by operating activities	44,210	3,587
Investing Activities
Acquisitions, net of cash acquired	(58,531)	0
Purchase of property, plant and equipment	(19,488)	(18,781)
Proceeds from sale of property, plant and equipment	1,987	1,037
Net cash used in investing activities	(76,032)	(17,744)
Financing Activities
Borrowings on bank revolving credit facility	141,000	126,000
Repayments on bank revolving credit facility	(76,000)	(85,000)
Principal payments on finance leases	(97)	(82)
Proceeds from issuance of long-term debt and finance leases	2	0
Dividends paid	(4,217)	(3,838)
Proceeds from exercise of stock options	2,465	2,507
Purchase of common stock for treasury	(4,140)	0
Cost of common stock repurchased	(590)	(436)
Net cash provided by financing activities	58,423	39,151
Effect of exchange rate changes on cash and cash equivalents	(365)	(1,487)
Net change in cash and cash equivalents	26,236	23,507
Cash and cash equivalents at beginning of the year	34,043	25,373
Cash and cash equivalents at end of the period	60,279	48,880
Cash paid during the period for:
Interest	5,327	3,889
Income taxes	$ 18,431	$ 26,568