Consolidated Statements of Cash Flows (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities:
Net income	$ 270,527	$ 95,249	$ 64,715
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	65,052	57,360	58,904
Amortization of convertible debt discount	2,391	2,211	2,158
Gain on disposition of property, plant and equipment	(887)	(178)	(379)
Stock compensation expense	18,128	8,819	8,319
Withholding taxes paid on stock issuances	(2,090)	(1,150)	(1,124)
(Gain) loss on the sale of businesses	313,708	(886)	(26,709)
Changes in assets and liabilities, net of the effects of acquisitions/divestitures:
Accounts receivable	(23,764)	(4,160)	(24,707)
Inventories	2,079	5,404	(12,384)
Prepaid expenses and other current assets	(2,172)	(4,341)	59
Accounts payable	2,384	(5,493)	615
Accrued liabilities	(9,891)	(9,746)	10,645
Deferred income taxes	3,412	9,446	5,386
Long-term retirement benefits	(642)	(16,438)	(18,367)
Other	(729)	(1,492)	475
Net cash provided by operating activities	10,090	136,377	121,024
Investing activities:
Proceeds from disposition of property, plant and equipment	1,767	854	3,620
Proceeds from (payments for) the sale of businesses	538,942	(438)	22,492
Change (investment) in restricted cash	0	4,900	(11,664)
Capital expenditures	(57,304)	(37,787)	(37,082)
Business acquisitions, net of cash acquired	(307,264)	(296,560)	(3,495)
Component Repair Program payments	(16,639)	0	0
Other	(2,058)	(3,776)	(4,483)
Net cash provided (used) by investing activities	157,444	(332,807)	(30,612)
Financing activities:
Net change in other borrowings	(2,753)	(8,852)	7,168
Payments on long-term debt	(555,195)	(114,411)	(411,661)
Proceeds from the issuance of long-term debt	450,253	376,000	392,390
Premium paid on convertible debt redemption	0	0	(9,803)
Proceeds from the issuance of common stock	13,491	7,061	28,579
Common stock repurchases	(68,608)	(19,037)	(34,066)
Dividends paid	(22,422)	(21,662)	(18,629)
Excess tax benefit on stock awards	3,899	1,438	8,056
Other	(1,472)	(1,261)	(2,229)
Net cash (used) provided by financing activities	(182,807)	219,276	(40,195)
Effect of exchange rate changes on cash flows	(227)	1,005	(1,162)
(Decrease) increase in cash and cash equivalents	(15,500)	23,851	49,055
Cash and cash equivalents at beginning of year	86,356	62,505	13,450
Cash and cash equivalents at end of year	70,856	86,356	62,505
Supplemental Disclosure of Cash Flow Information:
Debt assumed in connection with acquisition		45,537
Treasury shares issued (in shares)	1,032,493
Treasury shares issued	(36,695)
Intangible assets acquired	$ 10,000