Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities
Net income	$ 21,686	$ 6,583	$ 9,743
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	28,615	30,731	29,126
Deferred income taxes	1,404	11,274	(924)
Income from discontinued operations	(1,128)	(624)	(451)
Restructuring charges	3,891	4,942	3,782
Impairment charges	5,413	0	0
Gain on sale of facility and related land	(4,775)	0	0
Gains on dispositions of property and other assets	(265)	(206)	(42)
Share-based compensation expense	5,221	7,232	4,413
Excess tax benefit from share-based compensation arrangements	(422)	(293)	(54)
Other non-cash items, net	4,870	10,157	4,659
Change in operating assets and liabilities (excluding the impact of acquisitions):
Receivables	1,246	142	(18,092)
Inventories	7,663	195	3,729
Accounts payable	(15,436)	4,310	4,372
Restructuring liabilities	(4,841)	(4,694)	(3,888)
Accrued compensation	(11,707)	1,631	4,563
Customer deposits	(20,965)	926	4,950
Income taxes payable	218	467	(2,694)
Other assets and liabilities, net	(14,633)	(3,587)	(8,456)
Net cash provided by operating activities	6,055	69,186	34,736
Cash flows from investing activities
Capital expenditures	(36,119)	(27,675)	(21,538)
Acquisition of businesses, net of cash acquired	(647)	(23,546)	(41,105)
Proceeds from Sale of Property Held-for-sale	12,696	0	0
Proceeds from sale of land—discontinued operations	1,645	1,041	0
Proceeds from dispositions of property and other assets	464	322	440
Proceeds from sale of short-term investments	0	384	0
Net cash used in investing activities	(21,961)	(49,474)	(62,203)
Cash flows from financing activities
Payments on debt and capital lease obligations	(11,362)	(2,685)	(7,375)
Dividends paid on common stock	(58,914)	(4,454)	(3,241)
Common stock purchased for treasury	(1,328)	(1,656)	(5,230)
Debt issuance costs	0	0	(1,001)
Excess tax benefit from share-based compensation arrangements	422	293	54
Proceeds from exercise of stock options	777	248	296
Net cash used in financing activities	(50,405)	(8,254)	(16,497)
Effect of exchange rate changes on cash and cash equivalents	(2,039)	2,337	(1,501)
Net change in cash and cash equivalents	(68,350)	13,795	(45,465)
Cash and cash equivalents, beginning of year	114,171	100,376	145,841
Cash and cash equivalents, end of year	45,821	114,171	100,376
Supplemental disclosure of cash flow information
Cash paid for income taxes	8,498	8,386	10,213
Cash paid for interest	1,006	1,103	1,088
Property and equipment acquired under capital leases	832	1,011	1,327
Property and equipment purchases in accounts payable and accrued liabilities	3,204	4,822	2,585
Proceeds from Issuance of Debt	$ 20,000	$ 0	$ 0