Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating activities
Net income (loss)	$ 8,934	$ 93,760
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	73,749	81,856
Stock-based compensation	14,276	14,319
Amortization of prepaid debt fees	1,244	1,176
Deferred taxes, net	(17,490)	1,505
Restructuring expense (recovery), non-cash	27	(4,841)
Other adjustments, net	(462)	(119)
Changes in operating assets and liabilities, net of acquisition:
Accounts receivable	21,925	46,493
Inventories	(27,833)	(4,619)
Other current assets	(9,447)	(21,525)
Other long-term assets	4,719	1,624
Accounts payable, other current liabilities, and taxes payable	11,652	(39,368)
Wages and benefits payable	(7,844)	(16,869)
Unearned revenue	3,418	9,201
Warranty	(6,937)	(23,610)
Other operating, net	(4,054)	(1,980)
Net cash provided by operating activities	65,877	137,003
Investing activities
Acquisitions of property, plant, and equipment	(44,548)	(34,278)
Business acquisitions, net of cash and cash equivalents acquired	(860)	(79,874)
Other investing, net	3,705	4,005
Net cash used in investing activities	(41,703)	(110,147)
Financing activities
Proceeds from borrowings	35,000	70,000
Payments on debt	(53,125)	(101,252)
Issuance of common stock	3,842	3,778
Repurchase of common stock	(23,566)	(40,700)
Other financing, net	1,765	(342)
Net cash used in financing activities	(36,084)	(68,516)
Effect of foreign exchange rate changes on cash and cash equivalents	(2,454)	48
Decrease in cash and cash equivalents	(14,364)	(41,612)
Cash and cash equivalents at beginning of period	136,411	133,086
Cash and cash equivalents at end of period	122,047	91,474
Non-cash transactions:
Property, plant, and equipment purchased but not yet paid	2,249	5,206
Supplemental disclosure of cash flow information:
Income taxes, net	10,817	33,368
Interest, net of amounts capitalized	$ 6,276	$ 6,386