Consolidated Statements of Cash Flows (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating activities:
Net income	$ 118,370	$ 270,527	$ 95,249
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	81,395	65,052	57,360
Amortization of convertible debt discount	731	2,391	2,211
Loss (gain) on disposition of property, plant and equipment	143	(887)	(178)
Stock compensation expense	7,603	18,128	8,819
Withholding taxes paid on stock issuances	(4,367)	(2,090)	(1,150)
Loss (gain) on the sale of businesses	(1,586)	313,708	(886)
Changes in assets and liabilities, net of the effects of acquisitions/divestitures:
Accounts receivable	(21,367)	(23,764)	(4,160)
Inventories	(10,092)	2,079	5,404
Prepaid expenses and other current assets	(7,137)	(2,172)	(4,341)
Accounts payable	8,123	2,384	(5,493)
Accrued liabilities	24,402	(9,891)	(9,746)
Deferred income taxes	(9,841)	3,412	9,446
Long-term retirement benefits	(7,584)	(642)	(16,438)
Other	4,933	(729)	(1,492)
Net cash provided by operating activities	186,898	10,090	136,377
Investing activities:
Proceeds from disposition of property, plant and equipment	849	1,767	854
(Payments for) proceeds from the sale of businesses	(1,181)	538,942	(438)
Change in restricted cash	4,886	0	4,900
Capital expenditures	(57,365)	(57,304)	(37,787)
Business acquisitions, net of cash acquired	0	(307,264)	(296,560)
Component Repair Program payments	(70,100)	(16,639)	0
Other	(1,338)	(2,058)	(3,776)
Net cash (used) provided by investing activities	(124,249)	157,444	(332,807)
Financing activities:
Net change in other borrowings	7,009	(2,753)	(8,852)
Payments on long-term debt	(332,336)	(555,195)	(114,411)
Proceeds from the issuance of long-term debt	293,291	450,253	376,000
Payment of assumed liability to Otto Männer Holding AG	(19,796)	0	0
Premium paid on convertible debt redemption	(14,868)	0	0
Proceeds from the issuance of common stock	11,460	13,491	7,061
Common stock repurchases	(8,389)	(68,608)	(19,037)
Dividends paid	(24,464)	(22,422)	(21,662)
Excess tax benefit on stock awards	4,888	3,899	1,438
Other	(338)	(1,472)	(1,261)
Net cash (used) provided by financing activities	(83,543)	(182,807)	219,276
Effect of exchange rate changes on cash flows	(3,923)	(227)	1,005
(Decrease) increase in cash and cash equivalents	(24,817)	(15,500)	23,851
Cash and cash equivalents at beginning of year	70,856	86,356	62,505
Cash and cash equivalents at end of year	46,039	70,856	86,356
Supplemental Disclosure of Cash Flow Information:
Intangible assets acquired	19,000	10,000
Treasury shares issued (in shares)	0	1,032,493	0
Treasury shares issued		(36,695)
Debt assumed in connection with acquisition			$ 45,537