CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net earnings	$ 15,991us-gaap_NetIncomeLoss	$ 35,164us-gaap_NetIncomeLoss
Adjustments to reconcile net earnings to net cash used by operating activities:
Depreciation and amortization	25,708us-gaap_DepreciationAndAmortization	30,952us-gaap_DepreciationAndAmortization
(Gain)/loss on sale of businesses	(1,252)	0
(Gain)/loss on fixed asset disposals	(503)us-gaap_GainLossOnDispositionOfAssets	(17)us-gaap_GainLossOnDispositionOfAssets
Deferred income taxes	491us-gaap_DeferredIncomeTaxExpenseBenefit	(2,940)us-gaap_DeferredIncomeTaxExpenseBenefit
Share-based compensation	2,620us-gaap_ShareBasedCompensation	2,402us-gaap_ShareBasedCompensation
Impairment of assets held for sale	40,813	0
Change in operating assets and liabilities, net of businesses acquired and divested:
Accounts receivable, net	(9,993)us-gaap_IncreaseDecreaseInReceivables	(10,842)us-gaap_IncreaseDecreaseInReceivables
Inventories, net	(10,178)us-gaap_IncreaseDecreaseInInventories	(14,515)us-gaap_IncreaseDecreaseInInventories
Progress payments	(117)	(4,777)
Accounts payable and accrued expenses	(59,046)	(42,490)
Deferred revenue	(26,038)	(8,913)
Income taxes payable	(15,574)	10,871
Net pension and postretirement liabilities	(141,585)	(4,154)
Other current and long-term assets and liabilities	7,572	(5,334)
Net cash used for operating activities	(171,091)	(14,593)
Cash flows from investing activities:
Proceeds from sales and disposals of long lived assets	837	429
Proceeds from divestitures	4,010	0
Additions to property, plant, and equipment	(9,096)	(18,365)
Acquisition of businesses, net of cash acquired	(13,228)	(32,857)
Additional consideration of prior period acquisitions	(436)	(230)
Net cash used for investing activities	(17,913)	(51,023)
Cash flows from financing activities:
Borrowings under revolving credit facility	1,296us-gaap_ProceedsFromLinesOfCredit	163,483us-gaap_ProceedsFromLinesOfCredit
Repayments of Lines of Credit	(1,400)us-gaap_RepaymentsOfLinesOfCredit	(164,089)us-gaap_RepaymentsOfLinesOfCredit
Principal payments on debt	0us-gaap_RepaymentsOfLongTermDebt	(80)us-gaap_RepaymentsOfLongTermDebt
Repurchases of common stock	(46,985)	(5,013)
Proceeds from share-based compensation	7,616	21,135
Proceeds from (Payments for) Other Financing Activities	140	0
Excess tax benefits from share-based compensation	3,291	5,409
Net cash (used for) provided by financing activities	(36,042)	20,845
Effect of exchange-rate changes on cash	(9,476)	(2,556)
Net decrease in cash and cash equivalents	(234,522)	(47,327)
Cash and cash equivalents at beginning of period	450,116	175,294
Cash and cash equivalents at end of period	215,594	127,967
Supplemental disclosure of non-cash activities:
Capital expenditures incurred but not yet paid	502	1,160
Property and equipment acquired under build to suit transaction	$ 0	$ 8,008

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

+ Details

Name:	us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

+ Details

Name:	us-gaap_ProceedsFromDivestitureOfBusinesses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3095-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3098-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

+ Details

Name:	us-gaap_ProceedsFromSaleOfProductiveAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (j)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	duration

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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