CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Cash flows from operating activities:    
Net income $ 18,929 $ 15,070
Adjustments to reconcile net income to net cash provided by operating activities:    
Debt extinguishment expense   9,192
Deferred financing costs write-off   2,271
Provision for doubtful accounts 2,202 2,646
Amortization of deferred financing costs 1,030 948
Amortization of long-term liabilities 65 58
Share-based compensation expense 3,820 4,245
Depreciation and amortization 31,006 31,446
Gain on sale of rental fleet (2,826) (2,782)
Loss on disposal of property, plant and equipment 282 689
Deferred income taxes 9,151 8,542
Foreign currency exchange 27 4
Changes in certain assets and liabilities, net of effect of businesses acquired:    
Receivables 5,585 (12,296)
Inventories (904) (1,790)
Other assets (2,794) 482
Accounts payable (2,192) 5,765
Accrued liabilities (160) 220
Net cash provided by operating activities 63,221 64,710
Cash flows from investing activities:    
Cash paid for businesses acquired, net of cash acquired   (9,206)
Additions to rental fleet, excluding acquisitions (23,027) (28,158)
Proceeds from sale of rental fleet 6,283 7,409
Additions to property, plant and equipment, excluding acquisitions (8,707) (19,263)
Proceeds from sale of property, plant and equipment 768 1,615
Net cash used in investing activities (24,683) (47,603)
Cash flows from financing activities:    
Net repayments under lines of credit (3,509) (20,961)
Proceeds from issuance of 5.875% senior notes due 2024   250,000
Redemption of 7.875% senior notes due 2020   (200,000)
Debt extinguishment expense   (9,192)
Deferred financing costs (12) (4,916)
Principal payments on capital lease obligations (3,736) (2,920)
Issuance of common stock 1,640 92
Dividend payments (20,119) (18,236)
Purchase of treasury stock (7,984) (7,096)
Net cash used in financing activities (33,720) (13,229)
Effect of exchange rate changes on cash 319 (152)
Net increase in cash 5,137 3,726
Cash and cash equivalents at beginning of period 4,137 1,613
Cash and cash equivalents at end of period 9,274 5,339
Supplemental disclosure of cash flow information:    
Cash paid for interest 18,187 13,991
Cash paid for income and franchise taxes 1,100 1,151
Equipment and other acquired through capital lease obligations 2,333 14,258
Capital expenditures accrued or payable $ 8,268 $ 5,507