Interim Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Operating Activities
Net income	$ 35,920	$ 33,354
Adjustment to reconcile net income to net cash provided by (used in) operating activities:
Provision for doubtful accounts	157	(158)
Depreciation - Property, plant and equipment	6,868	6,242
Depreciation - Rental equipment	4,323	2,983
Amortization of intangibles	1,969	1,756
Amortization of debt issuance costs	110	110
Stock-based compensation expense	1,575	1,188
Provision for deferred income tax expense	2,306	967
Gain on sale of property, plant and equipment	(284)	(149)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(32,377)	(35,260)
Inventories	(11,023)	(22,116)
Rental equipment	(11,862)	(11,547)
Prepaid expenses and other assets	(3,393)	(1,452)
Trade accounts payable and accrued liabilities	5,555	5,959
Income taxes payable	(477)	(9,806)
Long-term tax payable	258	0
Other assets and long-term liabilities	1,274	215
Net cash provided by (used in) operating activities	899	(27,714)
Investing Activities
Acquisitions, net of cash acquired	(52,499)	0
Purchase of property, plant and equipment	(12,423)	(10,829)
Proceeds from sale of property, plant and equipment	661	628
Net cash used in investing activities	(64,261)	(10,201)
Financing Activities
Borrowings on bank revolving credit facility	122,000	104,000
Repayments on bank revolving credit facility	(41,000)	(45,000)
Principal payments on finance leases	(76)	(66)
Proceeds from issuance of long-term debt and finance leases	38	0
Dividends paid	(2,808)	(2,553)
Proceeds from exercise of stock options	2,077	2,186
Treasury stock	2,955	0
Cost of common stock repurchased	(590)	(437)
Net cash provided by financing activities	76,686	58,130
Effect of exchange rate changes on cash and cash equivalents	823	(1,986)
Net change in cash and cash equivalents	14,147	18,229
Cash and cash equivalents at beginning of the year	34,043	25,373
Cash and cash equivalents at end of the period	48,190	43,602
Cash paid during the period for:
Interest	3,285	2,526
Income taxes	$ 10,035	$ 19,637