Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities
Net income	$ 47,083	$ 28,078
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	31,206	27,040
Deferred income taxes	(3,549)	(1,128)
Loss from discontinued operations	771	233
Restructuring charges	3,664	1,542
Impairment charges	120
(Gains) losses on dispositions of property and other assets	126	(307)
Share-based compensation expense	4,709	3,131
Excess tax benefit from share-based compensation arrangements	(60)	(13)
Other non-cash items, net	4,644	4,427
Change in operating assets and liabilities (excluding the impact of acquisitions):
Receivables	(41,510)	(27,956)
Inventories	(12,903)	(6,258)
Accounts payable	38,522	14,899
Restructuring liabilities	(2,518)	(1,888)
Accrued compensation	(620)	3,385
Customer deposits	26,954	23,618
Income taxes payable	5,280	2,641
Other assets and liabilities, net	13,503	4,899
Net cash provided by operating activities	115,422	76,343
Cash flows from investing activities
Capital expenditures	(32,582)	(19,030)
Cash paid for acquired businesses	(145,735)	(430)
Proceeds from dispositions of property and other assets	774	844
Net cash used in investing activities	(177,543)	(18,616)
Cash flows from financing activities
Proceeds from borrowings	153,000	35,000
Payments on debt and capital lease obligations	(86,989)	(58,981)
Acquisition of business - deferred consideration		(896)
Dividends paid on common stock	(6,079)	(6,020)
Debt issuance costs	(340)
Common stock purchased for treasury	(679)	(4,776)
Excess tax benefit from share-based compensation arrangements	60	13
Proceeds from exercise of stock options		1,041
Net cash provided by (used in) financing activities	58,973	(34,619)
Effect of exchange rate changes on cash and cash equivalents	(702)	(4,785)
Net change in cash and cash equivalents	(3,850)	18,323
Cash and cash equivalents, beginning of year	56,531	56,990
Cash and cash equivalents, end of period	52,681	75,313
Supplemental disclosure of cash flow information
Cash paid for income taxes	8,355	6,835
Cash paid for interest	3,679	3,220
Property and equipment acquired under capital leases	950	618
Property and equipment purchases in accounts payable and accrued liabilities	$ 5,617	$ 184