Barnes (B) 10-K 20 Feb 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Feb. 14, 2018	Jun. 30, 2017
Document and Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Entity Registrant Name	BARNES GROUP INC
Entity Central Index Key	9,984
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		53,234,401
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 2,914,055,542

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
Net sales	$ 1,436,499	$ 1,230,754	$ 1,193,975
Cost of sales	939,288	790,299	782,817
Selling and administrative expenses	286,933	248,277	242,762
Total operating costs and expenses	1,226,221	1,038,576	1,025,579
Operating income	210,278	192,178	168,396
Interest expense	14,571	11,883	10,698
Other expense (income), net	8	(2,326)	(248)
Income before income taxes	195,699	182,621	157,946
Income taxes	136,284	47,020	36,566
Net income	$ 59,415	$ 135,601	$ 121,380
Per common share:
Basic (in dollars per share)	$ 1.10	$ 2.50	$ 2.21
Diluted (in dollars per share)	1.09	2.48	2.19
Dividends (in dollars per share)	$ 0.55	$ 0.51	$ 0.48
Weighted average common shares outstanding:
Basic (in shares)	54,073,407	54,191,013	55,028,063
Diluted (in shares)	54,605,298	54,631,313	55,513,219

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income		$ 59,415	$ 135,601	$ 121,380
Other comprehensive income (loss), net of tax
Unrealized gain (loss) hedging activities, net of tax (1)	[1]	299	(342)	847
Unrealized (loss) gain on hedging activities, tax		232	(42)	227
Foreign currency translation adjustments, net of tax (2)	[2]	83,404	(48,367)	(54,232)
Foreign currency translation adjustment, tax		610	(833)	(1,777)
Defined benefit pension and other postretirement benefits, net of tax (3)	[3]	10,726	(8,867)	9,586
Defined benefit pension and other postretirement benefits, tax		4,469	(4,687)	3,916
Total other comprehensive income (loss), net of tax		94,429	(57,576)	(43,799)
Total comprehensive income		$ 153,844	$ 78,025	$ 77,581
[1]	Net of tax of $232, $(42) and $227 for the years ended December 31, 2017, 2016 and 2015, respectively.
[2]	Net of tax of $610, $(833) and $(1,777) for the years ended December 31, 2017, 2016 and 2015, respectively.
[3]	Net of tax of $4,469, $(4,687) and $3,916 for the years ended December 31, 2017, 2016 and 2015, respectively.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 145,290	$ 66,447
Accounts receivable, less allowances (2017 – $5,143; 2016 – $3,992)	348,943	287,123
Inventories	241,962	227,759
Prepaid expenses and other current assets	32,526	27,163
Total current assets	768,721	608,492
Deferred income taxes	12,161	25,433
Property, plant and equipment, net	359,298	334,489
Goodwill	690,223	633,436
Other intangible assets, net	507,042	522,258
Other assets	28,271	13,431
Total assets	2,365,716	2,137,539
Current liabilities
Notes and overdrafts payable	5,669	30,825
Accounts payable	127,521	112,024
Accrued liabilities	181,241	156,967
Long-term debt – current	1,330	2,067
Total current liabilities	315,761	301,883
Long-term debt	525,597	468,062
Accrued retirement benefits	89,000	109,350
Deferred income taxes	73,505	66,446
Long-term tax liability	79,770	0
Other liabilities	21,762	23,440
Commitments and contingencies (Note 20)
Stockholders’ equity
Common stock – par value $0.01 per share Authorized: 150,000,000 shares, ssued: at par value (2017 – 63,034,240 shares; 2016 – 62,692,403 shares)	630	627
Additional paid-in capital	457,365	443,235
Treasury stock, at cost (2017 – 9,656,369 shares; 2016 – 8,889,947 shares)	(297,998)	(251,827)
Retained earnings	1,206,723	1,177,151
Accumulated other non-owner changes to equity	(106,399)	(200,828)
Total stockholders’ equity	1,260,321	1,168,358
Total liabilities and stockholders’ equity	$ 2,365,716	$ 2,137,539

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 5,143	$ 3,992
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	63,034,240	62,692,403
Treasury stock, at cost (in shares)	9,656,369	8,889,947

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating activities:
Net income	$ 59,415,000	$ 135,601,000	$ 121,380,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	90,150,000	80,154,000	78,242,000
Gain on disposition of property, plant and equipment	(246,000)	(349,000)	(1,128,000)
Stock compensation expense	12,279,000	11,493,000	9,258,000
Pension lump-sum settlement charge	0	0	9,856,000
Effect of U.S. Tax Reform on deferred tax assets	4,152,000	0	0
Changes in assets and liabilities, net of the effects of acquisitions:
Accounts receivable	(50,082,000)	(23,057,000)	14,027,000
Inventories	(173,000)	1,989,000	(1,190,000)
Prepaid expenses and other current assets	(4,241,000)	569,000	(2,645,000)
Accounts payable	12,018,000	11,778,000	(2,936,000)
Accrued liabilities	14,439,000	15,825,000	(14,166,000)
Deferred income taxes	3,589,000	(2,210,000)	3,121,000
Long-term retirement benefits	(16,349,000)	(15,492,000)	1,081,000
Long-term tax liability	79,770,000	0	0
Other	(801,000)	1,345,000	2,575,000
Net cash provided by operating activities	203,920,000	217,646,000	217,475,000
Investing activities:
Proceeds from disposition of property, plant and equipment	2,594,000	780,000	3,442,000
Capital expenditures	(58,712,000)	(47,577,000)	(45,982,000)
Business acquisitions, net of cash acquired	(8,922,000)	(128,613,000)	(51,954,000)
Component Repair Program payments	0	(4,100,000)	(21,000,000)
Other	(3,000,000)	0	0
Net cash used in investing activities	(68,040,000)	(179,510,000)	(115,494,000)
Financing activities:
Net change in other borrowings	(25,304,000)	8,375,000	14,680,000
Payments on long-term debt	(73,161,000)	(321,506,000)	(171,198,000)
Proceeds from the issuance of long-term debt	129,118,000	303,277,000	159,264,000
Proceeds from the issuance of common stock	2,408,000	4,611,000	11,425,000
Common stock repurchases	(40,791,000)	(20,520,000)	(52,103,000)
Dividends paid	(29,551,000)	(27,435,000)	(26,176,000)
Withholding taxes paid on stock issuances	(5,380,000)	(4,885,000)	(4,913,000)
Other	(21,090,000)	4,771,000	9,850,000
Net cash used by financing activities	(63,751,000)	(53,312,000)	(59,171,000)
Effect of exchange rate changes on cash flows	6,714,000	(2,303,000)	(4,923,000)
Increase (decrease) in cash and cash equivalents	78,843,000	(17,479,000)	37,887,000
Cash and cash equivalents at beginning of year	66,447,000	83,926,000	46,039,000
Cash and cash equivalents at end of year	$ 145,290,000	$ 66,447,000	83,926,000
Supplemental Disclosure of Cash Flow Information:
Intangible assets acquired			$ 3,200,000

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Non-Owner Changes to Equity [Member]
Balance at Dec. 31, 2014	$ 1,111,793	$ 612	$ 405,525	$ (169,405)	$ 974,514	$ (99,453)
Balance (in shares) at Dec. 31, 2014		61,230,000		6,729,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	77,581				121,380	(43,799)
Dividends paid	(26,176)				(26,176)
Common stock repurchases	(52,103)			$ (52,103)
Common stock repurchases (in shares)				1,352,596
Employee stock plans		$ 9
Employee stock plans (in shares)		841,164
Employee stock plans, other			22,033
Employee stock plans, shares withheld for taxes (in shares)				125,000
Employee stock plans, shares withheld for taxes				$ (4,913)
Dividends paid to holders of certain restricted stock units					(471)
Employee stock plans, total	16,658
Balance at Dec. 31, 2015	1,127,753	$ 621	427,558	$ (226,421)	1,069,247	(143,252)
Balance (in shares) at Dec. 31, 2015		62,071,000		8,207,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	78,025				135,601	(57,576)
Dividends paid	(27,435)				(27,435)
Common stock repurchases	(20,520)			$ (20,520)
Cumulative effect of change in accounting guidance (Note 12)	198				198
Common stock repurchases (in shares)				550,994
Employee stock plans		$ 6
Employee stock plans (in shares)		621,259
Employee stock plans, other			15,677
Employee stock plans, shares withheld for taxes (in shares)				132,000
Employee stock plans, shares withheld for taxes				$ (4,886)
Dividends paid to holders of certain restricted stock units					(460)
Employee stock plans, total	10,337
Balance at Dec. 31, 2016	1,168,358	$ 627	443,235	$ (251,827)	1,177,151	(200,828)
Balance (in shares) at Dec. 31, 2016		62,692,000		8,889,994
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income	153,844				59,415	94,429
Dividends paid	(29,551)				(29,551)
Common stock repurchases	(40,791)			$ (40,791)
Common stock repurchases (in shares)				677,100
Employee stock plans		$ 3
Employee stock plans (in shares)		341,837
Employee stock plans, other			14,130
Employee stock plans, shares withheld for taxes (in shares)				89,000
Employee stock plans, shares withheld for taxes				$ (5,380)
Dividends paid to holders of certain restricted stock units					(292)
Employee stock plans, total	8,461
Balance at Dec. 31, 2017	$ 1,260,321	$ 630	$ 457,365	$ (297,998)	$ 1,206,723	$ (106,399)
Balance (in shares) at Dec. 31, 2017		63,034,000		9,656,094

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies General: The preparation of consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Consolidation: The accompanying consolidated financial statements include the accounts of the Company and all of its subsidiaries. Intercompany transactions and account balances have been eliminated. Revenue recognition : Sales and related cost of sales are recognized when products are shipped or delivered to customers, title has transferred, and the risks and rewards of ownership pass to the customer, provided the earnings process is complete and revenue is measurable. Service revenue is recognized when the related services are performed. In the aerospace manufacturing businesses, the Company recognizes revenue based on the units-of-delivery method in accordance with accounting standards related to accounting for performance of construction-type and certain production-type contracts. Management fees related to the aerospace aftermarket Revenue Sharing Programs ("RSPs") are satisfied through an agreed upon reduction from the sales price of each of the related spare parts. These fees recognize our customer's necessary performance of engine program support activities, such as spare parts administration, warehousing and inventory management, and customer support, and are not separable from our sale of products, and accordingly, they are reflected as a reduction to sales, rather than as costs incurred, when revenues are recognized. Cash and cash equivalents: Cash in excess of operating requirements is invested in short-term, highly liquid, income-producing investments. All highly liquid investments purchased with an original maturity of three months or less are considered cash equivalents. Cash equivalents are carried at cost which approximates fair value. Inventories: Inventories are valued at the lower of cost, determined on a first-in, first-out basis, or net realizable value. Loss provisions, if any, on aerospace contracts are established when estimable. Loss provisions are based on the projected excess of manufacturing costs over the net revenues of the products or group of related products representing firm orders that are supported under a long term agreement. Property, plant and equipment: Property, plant and equipment is stated at cost. Depreciation is recorded over estimated useful lives, generally ranging from 20 to 50 years for buildings and four to 12 years for machinery and equipment. The straight-line method of depreciation was adopted for all property, plant and equipment placed in service after March 31, 1999. For property, plant and equipment placed into service prior to April 1, 1999, depreciation is calculated using accelerated methods. The Company assesses the impairment of property, plant and equipment subject to depreciation whenever events or changes in circumstances indicate the carrying value may not be recoverable. Goodwill: Goodwill represents the excess purchase cost over the fair value of net assets of companies acquired in business combinations. Goodwill is considered an indefinite-lived asset. Goodwill is subject to impairment testing in accordance with accounting standards governing such on an annual basis, in the second quarter, or more frequently if an event or change in circumstances indicates that the fair value of a reporting unit has been reduced below its carrying value. Based on the assessments performed during 2017, there was no goodwill impairment. Aerospace Aftermarket Programs: The Company participates in aftermarket RSPs under which the Company receives an exclusive right to supply designated aftermarket parts over the life of the related aircraft engine program. As consideration, the Company has paid participation fees, which are recorded as long-lived intangible assets. The Company records amortization of the related intangible asset as sales dollars are being earned based on a proportional sales dollar method. Specifically, this method amortizes each asset as a reduction to revenue based on the proportion of sales under a program in a given period to the estimated aggregate sales dollars over the life of that program. This method reflects the pattern in which the economic benefits of the RSPs are realized. The Company also entered into Component Repair Programs ("CRPs") that provide for, among other items, the right to sell certain aftermarket component repair services for CFM56, CF6, CF34 and LM engines directly to other customers as one of a few GE licensed suppliers. In addition, the CRPs extended certain existing contracts under which the Company currently provides these services directly to GE. The Company recorded the consideration for these rights as an intangible asset that is amortized as a reduction to sales over the remaining life of these engine programs based on the estimated sales over the life of such programs. This method reflects the pattern in which the economic benefits of the CRPs are realized. The recoverability of each asset is subject to significant estimates about future revenues related to the program’s aftermarket parts and services. The Company evaluates these intangible assets for recoverability and updates amortization rates on an agreement by agreement basis for the RSPs and on an individual asset program basis for the CRPs. The assets are reviewed for recoverability periodically including whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Annually, the Company evaluates the remaining useful life of these assets to determine whether events and circumstances warrant a revision to the remaining periods of amortization. Management updates revenue projections, which includes comparing actual experience against projected revenue and industry projections. The potential exists that actual revenues will not meet expectations due to a change in market conditions including, for example, the replacement of older engines with new, more fuel-efficient engines or the Company's ability to maintain market share within the Aftermarket business. A shortfall in future revenues may indicate a triggering event requiring a write down or further evaluation of the recoverability of the assets or require the Company to accelerate amortization expense prospectively dependent on the level of the shortfall. The Company has not identified any impairment of these assets. Other Intangible Assets: Other intangible assets consist primarily of the Aerospace Aftermarket Programs, as discussed above, customer relationships, tradenames, patents and proprietary technology. These intangible assets, with the exception of certain tradenames, have finite lives and are amortized over the periods in which they provide benefit. The Company assesses the impairment of long-lived assets, including identifiable intangible assets subject to amortization, whenever significant events or significant changes in circumstances indicate the carrying value may not be recoverable. Tradenames with indefinite lives are subject to impairment testing in accordance with accounting standards governing such on an annual basis, in the second quarter, or more frequently if an event or change in circumstances indicates that the fair value of the asset has been reduced below its carrying value. Based on the assessment performed during 2017, there were no impairments of other intangible assets. See Note 5 of the Consolidated Financial Statements. Derivatives: Accounting standards related to the accounting for derivative instruments and hedging activities require that all derivative instruments be recorded on the balance sheet at fair value. Foreign currency contracts may qualify as fair value hedges of unrecognized firm commitments, cash flow hedges of recognized assets and liabilities or anticipated transactions, or a hedge of a net investment. Changes in the fair market value of derivatives that qualify as fair value hedges or cash flow hedges are recorded directly to earnings or accumulated other non-owner changes to equity, depending on the designation. Amounts recorded to accumulated other non-owner changes to equity are reclassified to earnings in a manner that matches the earnings impact of the hedged transaction. Any ineffective portion, or amounts related to contracts that are not designated as hedges, are recorded directly to earnings. The Company’s policy for classifying cash flows from derivatives is to report the cash flows consistent with the underlying hedged item. Foreign currency: Assets and liabilities of international operations are translated at year-end rates of exchange; revenues and expenses are translated at average rates of exchange. The resulting translation gains or losses are reflected in accumulated other non-owner changes to equity within stockholders’ equity. Net foreign currency transaction gains of $756 , $1,873 and $505 in 2017 , 2016 and 2015 , respectively, were included in other expense (income), net in the Consolidated Statements of Income. Research and Development: Costs are incurred in connection with efforts aimed at discovering and implementing new knowledge that is critical to developing new products, processes or services, significantly improving existing products or services, and developing new applications for existing products and services. Research and development expenses for the creation of new and improved products and services were $14,765 , $12,913 and $12,688 , for the years 2017 , 2016 and 2015 , respectively, and are included in selling and administrative expense. Pension and Other Postretirement Benefits: The Company accounts for its defined benefit pension plans and other postretirement plans by recognizing the overfunded or underfunded status of the plans, calculated as the difference between plan assets and the projected benefit obligation related to each plan, as an asset or liability on the Consolidated Balance Sheets. Benefit costs associated with the plans primarily include current service costs, interest costs and the amortization of actuarial losses, partially offset by expected returns on plan assets, which are determined based upon actuarial valuations. Settlement and curtailment losses (gains) may also impact benefit costs. The Company regularly reviews actuarial assumptions, including discount rates and the expected return on plan assets, which are updated at the measurement date, December 31st. The impact of differences between actual results and the assumptions are generally accumulated within Other Comprehensive Income and amortized over future periods, which will affect benefit costs recognized in such periods. See Note 11 to the Consolidated Financial Statements. Stock-Based Compensation: Stock-based employee compensation plans are accounted for based on their fair value on the grant date and the related cost is recognized in the Consolidated Statements of Income in accordance with accounting standards related to share-based payments. The fair values of stock options are estimated using the Black-Scholes option-pricing model based on certain assumptions. The fair values of service and performance based share awards are estimated based on the fair market value of the Company’s stock price on the grant date. The fair values of market based performance share awards are estimated using the Monte Carlo valuation method. See Note 12 of the Consolidated Financial Statements. Income Taxes: Deferred tax assets and liabilities are recognized for future tax effects attributable to temporary differences, operating loss carryforwards and tax credits. The measurement of deferred tax assets and liabilities is determined using tax rates from enacted tax law of the period in which the temporary differences, operating loss carryforwards and tax credits are expected to be realized. The effect of the change in income tax rates is recognized in the period of the enactment date. The guidance related to accounting for income taxes requires that deferred tax assets be reduced by a valuation allowance if, based on all available evidence, it is more likely than not that the deferred tax asset will not be realized. The Company is exposed to certain tax contingencies in the ordinary course of business and records those tax liabilities in accordance with the guidance for accounting for uncertain tax positions. See Note 13 of the Consolidated Financial Statements. Recent Accounting Standards The Financial Accounting Standards Board ("FASB") establishes changes to accounting principles under U.S. GAAP through the use of Accounting Standards Updates ("ASUs") to the FASB's Accounting Standards Codification. The Company evaluates the applicability and potential impacts of recent ASUs. Recently Adopted Accounting Standards In April 2015, the FASB amended its guidance related to the presentation of debt issuance costs. The amended guidance specifies that debt issuance costs related to notes shall be reported in the balance sheet as a direct deduction from the face amount of that note and that amortization of debt issuance costs shall be reported as interest expense. The amended guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 and should be applied retrospectively. The Company adopted the guidance during the first quarter of 2016 and it did not have a material impact on its Consolidated Financial Statements. In July 2015, the FASB amended its guidance related to the measurement of inventory. The amended guidance requires inventory to be measured at the lower of cost and net realizable value and thereby simplifies the prior guidance of measuring inventory at the lower of cost or market. The amended guidance is effective prospectively for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. The Company adopted the guidance during the first quarter of 2017 and it did not have a material impact on its Consolidated Financial Statements. In November 2015, the FASB amended its guidance related to the balance sheet classification of deferred income taxes. The amended guidance removes the requirement to separate and classify deferred income tax liabilities and assets into current and non-current amounts and requires an entity to now classify all deferred tax liabilities and assets as non-current. The amended guidance can be adopted either on a prospective or retrospective basis and is effective for interim and annual periods beginning after December 15, 2016. Early adoption is permitted. The provisions of the amended guidance were adopted on a prospective basis during the first quarter of 2016. The provisions resulted in the classification of $26,639 and $1,290 of current deferred income tax assets and liabilities, respectively, into non-current deferred income tax assets and liabilities on the Consolidated Balance Sheet as of December 31, 2016. In March 2016, the FASB amended its guidance related to the accounting for certain aspects of share-based payments to employees. The amended guidance requires that all tax effects related to share-based payments are recorded at settlement (or expiration) through the income statement, rather than through equity. Cash flows related to excess tax benefits will no longer be separately classified as a financing activity apart from other income tax cash flows. The amended guidance also allows for an employer to repurchase additional employee shares for tax withholding purposes without requiring liability accounting and clarifies that all cash payments made to tax authorities on an employee’s behalf for withheld shares should be presented as a financing activity on the Consolidated Statements of Cash Flows. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. Early adoption was permitted, and the Company elected to early adopt in the third quarter of 2016. See Note 12 of the Consolidated Financial Statements for additional details related to the Company's adoption of this amended guidance. Recently Issued Accounting Standards In May 2014, the Financial Accounting Standards Board ("FASB") amended its guidance related to revenue recognition. The amended guidance establishes a single comprehensive model for companies to use in accounting for revenue arising from contracts with customers and will supersede most of the existing revenue recognition guidance, including industry-specific guidance. The amended guidance clarifies that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the amended guidance, an entity will (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the contract’s performance obligations; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The amended guidance applies to all contracts with customers except those that are within the scope of other topics in the FASB Accounting Standards Codification. The amended guidance was initially effective for annual reporting periods (including interim periods within those periods) beginning after December 15, 2016 for public companies. On July 9, 2015, the FASB approved a deferral of the effective date by one year to December 15, 2017 for annual reporting periods beginning after that date. The FASB also permitted early adoption of the standard, but not before the original effective date of December 15, 2016. Entities have the option of using either a full retrospective or modified retrospective approach to the amended guidance. The Company will adopt the amended guidance using the modified retrospective approach on January 1, 2018 at which time it becomes effective for the Company. In 2015, management developed a project plan and established a cross-functional team to implement the amended guidance. We have completed the review of our customer contracts and have evaluated the impact of the amended guidance on each of our primary revenue streams. While we are finalizing our overall assessment under the amended guidance, we believe that the most significant impact relates to the timing of revenue recognition, presentation and disclosures. We expect that the majority of our businesses will continue to recognize revenue on a "point-in-time basis". We also expect, however, that a portion of our businesses with customized products or customer contracts in which we perform work on a customer-owned asset will require the use of an "over time" recognition model as certain of our contracts meet certain of the criteria established in the amended guidance. We will utilize the cost-to-cost input method to measure progress towards completion for contracts on an over time revenue recognition model. On January 1, 2018, the Company will recognize the cumulative effect of initially applying the amended guidance as an increase of approximately $4,000 to the opening balance of retained earnings, attributed primarily to the over time recognition of approximately $15,000 of net sales. We do not expect that the ongoing impact to net sales and net income will be material to the Consolidated Statements of Income, however the future impact of the amended guidance is dependent on the mix and nature of specific customer contracts. Under the existing guidance, the Company recognizes customer advances when payment is received. Adoption of the amended guidance will result in the recognition of additional customer advances for which the Company has received an unconditional right to payment. Since the related performance obligations have not been satisfied, however, the Company will recognize these customer advances as trade receivables, with a corresponding contract liability of equal amount. We continue to identify appropriate changes to our business processes, systems and controls to support recognition and disclosure requirements under the new standard. We are continuing to implement design changes to such business processes, controls and systems to ensure that such changes are effective. In February 2016, the FASB amended its guidance related to lease accounting. The amended guidance requires lessees to recognize a majority of their leases on the balance sheet as a right-to-use asset. Lessees are permitted to make an accounting policy election to not recognize an asset and liability for leases with a term of twelve months or less. Lease expense will be recorded in a manner similar to current accounting. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted. The Company is currently evaluating the guidance to determine the impact it will have on its Consolidated Financial Statements. The Company anticipates the amended guidance will have a material impact on its assets and liabilities due to the addition of right-of-use assets and lease liabilities to the balance sheet; however, it does not expect the amended guidance to have a material impact on its cash flows or results of operations. In August 2016, the FASB amended its guidance related to the Statement of Cash Flows. The amended guidance clarifies how certain cash receipts and cash payments should be presented on the statement of cash flows, with focus on eight specific areas in which cash flows have, in practice, been presented inconsistently. The guidance is effective for annual periods beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted. The Company does not expect the amended guidance to have a material impact on its cash flows. In January 2017, the FASB amended its guidance related to goodwill impairment testing. The amended guidance simplifies the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test. Under the amended guidance, companies should perform their annual goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. Companies would recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value, assuming the loss recognized does not exceed the total amount of goodwill for the reporting unit. The amended guidance is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted. The adoption of this amended guidance is not expected to have a material impact on the Company's Consolidated Financial Statements. In March 2017, the FASB amended its guidance related to the presentation of pension costs. The amended guidance requires the bifurcation of net periodic benefit cost for pension and other postretirement plans. The service cost component of expense will be presented with other employee compensation costs in operating income, consistent with the current guidance. The other components of expense, however, will be reported separately outside of operating income. The guidance is effective for annual periods beginning after December 15, 2017 and interim periods within that reporting period. Early adoption is permitted. The Company is currently evaluating the amended guidance to determine the impact it will have on its Consolidated Financial Statements. The Company does not expect that the adoption of this amended guidance will have a material impact on the Company's Consolidated Financial Statements on an ongoing basis. The Company's retrospective adoption, though, will have an impact on certain classifications in the 2017 Consolidated Statements of Income, primarily due to the pre-tax pension curtailment gain of $7,217 that was recorded in operating income during 2017. See Note 11 of the Consolidated Financial Statements. In August 2017, the FASB amended its guidance related to hedge accounting. The amended guidance makes more financial and nonfinancial hedging strategies eligible for hedge accounting, amends presentation and disclosure requirements and changes the assessment of effectiveness. The guidance also more closely aligns hedge accounting with management strategies, simplifies application and increases the transparency of hedging. The amended guidance is effective January 1, 2019, with early adoption permitted in any interim period. The Company is currently evaluating the impact that the guidance may have on its Consolidated Financial Statements. In February 2018, the FASB issued guidance related to the impacts of the tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Act”). The guidance permits the reclassification of certain income tax effects of the Act from Other Comprehensive Income to Retained Earnings (stranded tax effects). The guidance also requires certain new disclosures. The guidance is effective for annual periods beginning after December 15, 2018, and interim periods within that reporting period. Early adoption is permitted. Entities may adopt the guidance using one of two transition methods; retrospective to each period (or periods) in which the income tax effects of the Act related to the items remaining in Other Comprehensive Income are recognized or at the beginning of the period of adoption. The Company is currently evaluating the impact that the guidance may have on its Consolidated Financial Statements.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2017
Business Combinations [Abstract]
Acquisition	Acquisitions The Company has acquired a number of businesses during the past three years . The results of operations of these acquired businesses have been included in the consolidated results from the respective acquisition dates. The purchase prices for these acquisitions have been allocated to tangible and intangible assets and liabilities of the businesses based upon estimates of their respective fair values. Pro forma operating results for the acquisitions are not presented as the results would not be significantly different than historical results. In the second quarter of 2017, the Company completed its acquisition of the assets of the privately held Gammaflux L.P. business ("Gammaflux"), a leading supplier of hot runner temperature and sequential valve gate control systems to the plastics industry. Gammaflux, which is headquartered in Sterling, Virginia and has offices in Illinois and Germany, provides temperature control solutions for injection molding, extrusion, blow molding, thermoforming, and other applications. Its end markets include packaging, electronics, automotive, household products, medical, and tool building. The Company acquired the assets of Gammaflux for an aggregate purchase price of $8,866 , which was financed using cash on hand and borrowings under the Company's revolving credit facility. The purchase price includes adjustments under the terms of the Asset Purchase Agreement, including $2 related to cash acquired. In connection with the acquisition, the Company recorded $1,535 of goodwill and $3,700 of intangible assets. See Note 5 to the Consolidated Financial Statements. The Company incurred $210 of acquisition-related costs during the year ended December 31, 2017 related to the Gammaflux acquisition. These costs include due diligence costs and transaction costs to complete the acquisition and have been recognized in the Consolidated Statements of Income as selling and administrative expenses. The operating results of Gammaflux have been included in the Consolidated Statements of Income for the period ended December 31, 2017 since the date of acquisition. The Company reported $9,081 in net sales for Gammaflux for the year ended December 31, 2017. Gammaflux results have been included within the Industrial segment's operating profit. In the third quarter of 2016, the Company, through three of its subsidiaries (collectively, the “Purchaser”), completed its acquisition of the molds business of Adval Tech Holding AG and Adval Tech Holdings (Asia) Pte. Ltd. ("FOBOHA"). FOBOHA is headquartered in Haslach, Germany and currently operates out of manufacturing facilities located in Germany and China. When acquired, FOBOHA also operated out of a third manufacturing facility located in Switzerland; however, this operation was consolidated and closed during 2017. See Note 8 to the Consolidated Financial Statements. The Company completed its purchase of the Germany and Switzerland businesses on August 31, 2016. The purchase of the China business required government approval which was granted on September 30, 2016. On October 7, 2016, shares of the China operations were subsequently transferred to the Company upon payment, per the terms of the Share Purchase Agreement for these respective operations ("China SPA"). The Company, pursuant to the terms and conditions within the Share Purchase Agreement ("FOBOHA SPA"), assumed economic control of the China business effective August 31, 2016. Having both economic control and the benefits and risks of ownership during the period from August 31, 2016 through September 30, 2016, the Company included the results of the China business within the consolidated results of operations of the Company during this period. FOBOHA specializes in the development and manufacture of complex plastic injection molds for packaging, medical, consumer and automotive applications. The Company acquired FOBOHA for an aggregate cash purchase price of CHF 137,918 ( $140,203 ) which was financed using cash on hand and borrowings under the Company's revolving credit facility. The purchase price includes adjustments under the terms of the FOBOHA SPA, including approximately CHF 11,342 ( $11,530 ) related to cash acquired. In connection with the acquisition, the Company recorded $39,800 of intangible assets and $75,574 of goodwill. See Note 5 to the Consolidated Financial Statements. The Company incurred $2,193 of acquisition-related costs during the year ended December 31, 2016 related to the FOBOHA acquisition. These costs include due diligence costs and transaction costs to complete the acquisition and have been recognized in the Company's Consolidated Statements of Income as selling and administrative expenses. The operating results of FOBOHA have been included in the Consolidated Statements of Income for the period ended December 31, 2016 since the date of acquisition. The Company reported $18,348 in net sales for FOBOHA for the year ended December 31, 2016. FOBOHA results have been included within the Industrial segment's operating profit. In the fourth quarter of 2015, the Company, itself and through two of its subsidiaries, completed the acquisition of privately held Priamus System Technologies AG and two of its subsidiaries (collectively, "Priamus") from Growth Finance AG. Priamus, which has approximately 40 employees, is headquartered in Schaffhausen, Switzerland and has direct sales and service offices in the U.S. and Germany. Priamus is a technology leader in the development of advanced process control systems for the plastic injection molding industry and services many of the world's highest quality plastic injection molders in the medical, automotive, consumer goods, electronics and packaging markets. The Company acquired Priamus for an aggregate cash purchase price of CHF 9,879 ( $10,111 ) which was financed using cash on hand and borrowings under the Company's revolving credit facility. The purchase price includes adjustments under the terms of the Share Purchase Agreement, including CHF 1,556 ( $1,592 ) related to cash acquired. In the third quarter of 2015, the Company, through one of its subsidiaries, completed the acquisition of the Thermoplay business ("Thermoplay") by acquiring all of the capital stock of privately held HPE S.p.A., the parent Company through which Thermoplay operates. Thermoplay’s headquarters and manufacturing facility are located in Pont-Saint-Martin in Aosta, Italy, with technical service capabilities in China, India, France, Germany, United Kingdom, Portugal, and Brazil. Thermoplay specializes in the design, development, and manufacturing of hot runner solutions for plastic injection molding, primarily in the packaging, automotive, and medical end markets. The Company acquired Thermoplay for an aggregate cash purchase price of €58,066 ( $63,690 ), pursuant to the terms of the Sale and Purchase Agreement ("SPA"), which was financed using cash on hand and borrowings under the Company's revolving credit facility. The purchase price includes adjustments under the terms of the SPA, including €17,054 ( $18,706 ) related to cash acquired. The Company incurred $2,195 and $574 of acquisition-related costs during the year ended December 31, 2015 related to the Thermoplay and Priamus acquisitions, respectively. These costs include due diligence costs and transaction costs to complete the acquisitions, and have been recognized in the Company's Consolidated Statements of Income as selling and administrative expenses. The operating results of Thermoplay and Priamus have been included in the Consolidated Statements of Income for the period ended December 31, 2015, since the dates of acquisition. The Company reported $13,593 and $2,028 in net sales for Thermoplay and Priamus, respectively, for the year ended December 31, 2015. Thermoplay and Priamus results have been included within the Industrial segment's operating profit.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2017
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories at December 31 consisted of: 2017 2016 Finished goods $ 79,649 $ 71,100 Work-in-process 97,276 98,246 Raw materials and supplies 65,037 58,413 $ 241,962 $ 227,759

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment at December 31 consisted of: 2017 2016 Land $ 21,723 $ 19,952 Buildings 182,226 169,695 Machinery and equipment 631,392 572,540 835,341 762,187 Less accumulated depreciation (476,043 ) (427,698 ) $ 359,298 $ 334,489 Depreciation expense was $48,693 , $43,165 and $39,654 during 2017 , 2016 and 2015 , respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill: The following table sets forth the change in the carrying amount of goodwill for each reportable segment and the Company: Industrial Aerospace Total Company January 1, 2016 $ 557,206 $ 30,786 $ 587,992 Acquisition-related 73,688 — 73,688 Foreign currency translation (28,244 ) — (28,244 ) December 31, 2016 602,650 30,786 633,436 Acquisition-related 3,330 — 3,330 Foreign currency translation 53,457 — 53,457 December 31, 2017 $ 659,437 $ 30,786 $ 690,223 Of the $690,223 of goodwill at December 31, 2017 , $43,860 represents the original tax deductible basis. The increase in goodwill in 2016 was due to the acquisition of FOBOHA on August 31, 2016, which is included in the Industrial segment. The amount allocated to goodwill reflects the benefits that the Company expects to realize from synergies created by combining the operations of FOBOHA, future enhancements to technology, geographical expansion and FOBOHA's assembled workforce. None of the recognized goodwill is expected to be deductible for income tax purposes. Other Intangible Assets: Other intangible assets at December 31 consisted of: 2017 2016 Range of Life-Years Gross Amount Accumulated Amortization Gross Amount Accumulated Amortization Amortized intangible assets: Revenue Sharing Programs Up to 30 $ 293,700 $ (108,075 ) $ 293,700 $ (95,701 ) Component Repair Programs Up to 30 111,839 (16,508 ) 111,839 (10,497 ) Customer lists/relationships 10-16 215,966 (65,385 ) 215,266 (53,198 ) Patents and technology 4-14 87,052 (48,083 ) 84,052 (37,897 ) Trademarks/trade names 10-30 11,950 (10,349 ) 11,950 (9,967 ) Other Up to 15 20,551 (16,414 ) 20,551 (16,338 ) 741,058 (264,814 ) 737,358 (223,598 ) Unamortized intangible asset: Trade names 42,770 — 42,770 — Foreign currency translation (11,972 ) — (34,272 ) — Other intangible assets $ 771,856 $ (264,814 ) $ 745,856 $ (223,598 ) The Company entered into Component Repair Programs ("CRPs") with General Electric ("GE") during 2015, 2014 and 2013. The CRPs provide for, among other items, the right to sell certain aftermarket component repair services for CFM56, CF6, CF34 and LM engines directly to other customers over the life of the aircraft engine program as one of a few GE licensed suppliers. In addition, the CRPs extended certain contracts under which the Company provides these services directly to GE. Total investments in CRPs as of December 31, 2017 equaled $111,839 , all of which have been paid. The Company recorded the CRP consideration as an intangible asset which is recognized as a reduction of sales over the remaining useful life of these engine programs based on the estimated sales over the life of such programs. In connection with the acquisition of FOBOHA in August 2016, the Company recorded intangible assets of $39,800 , which includes $20,700 of customer relationships, $14,700 of patents and technology and $4,400 of an indefinite life trade name. The weighted-average useful lives of the acquired assets were 16 years and 7 years, respectively. Amortization of intangible assets for the years ended December 31, 2017 , 2016 and 2015 was $41,216 , $36,753 and $38,502 , respectively. Estimated amortization of intangible assets for future periods is as follows: 2018 - $41,000 ; 2019 - $41,000 ; 2020 - $37,000 ; 2021 - $37,000 and 2022 - $36,000 . The Company has entered into a number of aftermarket RSP agreements each of which is with GE. See Note 1 of the Consolidated Financial Statements for a further discussion of these Revenue Sharing Programs. As of December 31, 2017 , the Company has made all required participation fee payments under the aftermarket RSP agreements.

Accrued Liabilities

Accrued Liabilities	12 Months Ended
	Dec. 31, 2017
Accrued Liabilities [Abstract]
Accrued Liabilities	Accrued Liabilities Accrued liabilities at December 31 consisted of: 2017 2016 Payroll and other compensation $ 53,857 $ 37,560 Deferred revenue and customer advances 40,472 34,812 Pension and other postretirement benefits 8,294 8,261 Accrued income taxes 26,340 26,477 Other 52,278 49,857 $ 181,241 $ 156,967

Debt and Commitments

Debt and Commitments	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Debt and Commitments	Debt and Commitments Long-term debt and notes and overdrafts payable at December 31 consisted of: 2017 2016 Carrying Amount Fair Value Carrying Amount Fair Value Revolving credit agreement $ 421,500 $ 424,818 $ 363,300 $ 364,775 3.97% Senior Notes 100,000 101,348 100,000 101,598 Borrowings under lines of credit and overdrafts 5,669 5,669 30,825 30,825 Capital leases 4,541 4,964 5,413 5,902 Other foreign bank borrowings 886 897 1,416 1,428 532,596 537,696 500,954 504,528 Less current maturities (6,999 ) (32,892 ) Long-term debt $ 525,597 $ 468,062 The Company’s long-term debt portfolio consists of fixed-rate and variable-rate instruments and is managed to reduce the overall cost of borrowing and to mitigate fluctuations in interest rates. Among other things, interest rate fluctuations impact the market value of the Company’s fixed-rate debt. In February 2017, the Company and certain of its subsidiaries entered into the fourth amendment of its fifth amended and restated revolving credit agreement (the “Amended Credit Agreement”) and retained Bank of America, N.A as the Administrative Agent for the lenders. The Amended Credit Agreement increases the facility from $750,000 to $850,000 and extends the maturity date from September 2018 to February 2022 . The Amended Credit Agreement also increases the existing accordion feature from $250,000 , allowing the Company to now request additional borrowings of up to $350,000 . The Company may exercise the accordion feature upon request to the Administrative Agent as long as an event of default has not occurred or is not continuing. The borrowing availability of $850,000 , pursuant to the terms of the Amended Credit Agreement, allows for multi-currency borrowing which includes euro, sterling or Swiss franc borrowing, up to $600,000 . Depending on the Company’s consolidated leverage ratio, and at the election of the Company, borrowings under the Amended Credit Agreement will bear interest at either LIBOR plus a margin of between 1.10% and 1.70% or the base rate, as defined in the Amended Credit Agreement, plus a margin of 0.10% to 0.70% . The Company paid fees and expenses of $2,542 in conjunction with executing the Amended Credit Agreement; such fees have been deferred within Other Assets on the accompanying Consolidated Balance Sheets and are being amortized into interest expense on the accompanying Consolidated Statements of Income through its maturity. Cash used to pay these fees has been recorded through other financing activities on the Consolidated Statements of Cash Flows. Borrowings and availability under the Amended Credit Agreement were $ 421,500 and $ 428,500 , respectively, at December 31, 2017 and $363,300 and $386,700 , respectively, at December 31, 2016 . The average interest rate on these borrowings was 2.65% and 1.86% on December 31, 2017 and 2016, respectively. The fair value of the borrowings is based on observable Level 2 inputs. The borrowings were valued using discounted cash flows based upon the Company's estimated interest costs for similar types of borrowings. In 2016, the Company borrowed $100,000 under the Amended Credit Facility through an international subsidiary. The proceeds were distributed to the Parent Company and subsequently used to pay down U.S. borrowings under the Amended Credit Agreement. In October 2014 , the Company entered into a Note Purchase Agreement (“Note Purchase Agreement”), among the Company and New York Life Insurance Company, New York Life Insurance and Annuity Corporation and New York Life Insurance and Annuity Corporation Institutionally Owned Life Insurance Separate Account, as purchasers, for the issuance of $100,000 aggregate principal amount of 3.97% Senior Notes due October 17, 2024 (the “ 3.97% Senior Notes”). The 3.97% Senior Notes are senior unsecured obligations of the Company and pay interest semi-annually on April 17 and October 17 of each year at an annual rate of 3.97% . The 3.97% Senior Notes will mature on October 17, 2024 unless earlier prepaid in accordance with their terms. Subject to certain conditions, the Company may, at its option, prepay all or any part of the 3.97% Senior Notes in an amount equal to 100% of the principal amount of the 3.97% Senior Notes so prepaid, plus any accrued and unpaid interest to the date of prepayment, plus the Make-Whole Amount, as defined in the Note Purchase Agreement, with respect to such principal amount being prepaid. The fair value of the 3.97% Senior Notes was determined using the US Treasury yield and a long-term credit spread for similar types of borrowings, which represent Level 2 observable inputs. The Company's borrowing capacity remains limited by various debt covenants in the Amended Credit Agreement and the Note Purchase Agreement (the "Agreements"). The Agreements require the Company to maintain a ratio of Consolidated Senior Debt, as defined, to Consolidated EBITDA, as defined, of not more than 3.25 times ("Senior Debt Ratio"), a ratio of Consolidated Total Debt, as defined, to Consolidated EBITDA of not more than 3.75 times and a ratio of Consolidated EBITDA to Consolidated Cash Interest Expense, as defined, of not less than 4.25 times at the end of each fiscal quarter; provided that these debt to EBITDA ratios are permitted to increase for a period of four fiscal quarters after the closing of certain permitted acquisitions. At December 31, 2017 , the Company was in compliance with all covenants under the Agreements and continues to monitor its future compliance based on current and future economic conditions. In addition, the Company has approximately $59,000 in uncommitted short-term bank credit lines ("Credit Lines") and overdraft facilities. Under the Credit Lines, $5,300 was borrowed at December 31, 2017 at an average interest rate of 2.33% and $30,700 was borrowed at December 31, 2016 at an average interest rate of 1.96% . The Company had also borrowed $369 and $125 under the overdraft facilities at December 31, 2017 and 2016 , respectively. Repayments under the Credit Lines are due within one month after being borrowed. Repayments of the overdrafts are generally due within two days after being borrowed. The carrying amounts of the Credit Lines and overdrafts approximate fair value due to the short maturities of these financial instruments. The Company has capital leases at the Thermoplay and Männer businesses. The fair value of the capital leases are based on observable Level 2 inputs. These instruments are valued using discounted cash flows based upon the Company's estimated interest costs for similar types of borrowings. At December 31, 2017 and 2016 , the Company also had other foreign bank borrowings of $886 and $1,416 , respectively. The fair value of the foreign bank borrowings was based on observable Level 2 inputs. These instruments were valued using discounted cash flows based upon the Company's estimated interest costs for similar types of borrowings. Long-term debt and notes payable as of December 31, 2017 are payable as follows: $6,999 in 2018 , $955 in 2019 , $508 in 2020 , $601 in 2021 , $421,989 in 2022 and $101,544 thereafter. The 3.97% Senior Notes are due in 2024 according to their maturity date. In addition, the Company had outstanding letters of credit totaling $9,339 at December 31, 2017 . Interest paid was $13,962 , $11,471 and $10,550 in 2017 , 2016 and 2015 , respectively. Interest capitalized was $415 , $324 and $422 in 2017 , 2016 and 2015 , respectively, and is being depreciated over the lives of the related fixed assets.

Business Reorganizations

Business Reorganizations	12 Months Ended
	Dec. 31, 2017
Restructuring and Related Activities [Abstract]
Business Reorganizations	Business Reorganizations In the second quarter of 2017, the Company authorized the closure and consolidation of two production facilities (the "Closures") including a FOBOHA facility located in Muri, Switzerland ( 60 employees) and an Associated Spring facility ( 30 employees) into other facilities included within the Industrial segment to leverage capacity, infrastructure and critical resources. The Company recorded a net pre-tax loss of $13 in 2017 related to the Closures. This balance includes employee severance charges of $3,796 and other Closure costs of $3,664 , primarily related to asset write-downs and costs to transfer work to other existing facilities, almost fully offset by pension curtailment and settlement gains of $7,217 and $230 , respectively. The Muri Closure was completed as of December 31, 2017, whereas the Closure at the Associated Spring facility is expected to be completed in the first half of 2018. The remaining severance liability, which is expected to be paid in 2018, was included within accrued liabilities as of December 31, 2017. Closure costs are recorded primarily within cost of sales in the accompanying Consolidated Statements of Income and are reflected in the results of the Industrial segment. The following table sets forth the change in the liability for the 2017 employee termination actions: January 1, 2017 $ — Employee severance costs 3,796 Payments (3,099 ) Foreign currency translation (48 ) December 31, 2017 $ 649

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives The Company has manufacturing and sales facilities around the world and thus makes investments and conducts business transactions denominated in various currencies. The Company is also exposed to fluctuations in interest rates and commodity price changes. These financial exposures are monitored and managed by the Company as an integral part of its risk management program. Financial instruments have been used by the Company to hedge its exposures to fluctuations in interest rates. In 2012, the Company entered into five -year interest rate swap agreements (the "Swaps") transacted with three banks which together converted the interest on the first $100,000 of the Company's one-month LIBOR -based borrowings from a variable rate plus the borrowing spread to a fixed rate of 1.03% plus the borrowing spread. The Swaps expired on April 28, 2017. The Company entered into a new interest rate swap agreement (the "Swap") that commenced on April 28, 2017, with one bank, and converts the interest on the first $100,000 of the Company's one-month LIBOR -based borrowings from a variable rate plus the borrowing spread to a fixed rate of 1.92% plus the borrowing spread. The Swap expires on January 31, 2022. These interest rate swap agreements were accounted for as cash flow hedges. The Swap remained in place at December 31, 2017 . The Company also uses financial instruments to hedge its exposures to fluctuations in foreign currency exchange rates. The Company has various contracts outstanding which primarily hedge recognized assets or liabilities and anticipated transactions in various currencies including the Euro, British pound sterling, U.S. dollar, Canadian dollar, Japanese yen, Singapore dollar, Korean won, Swedish kroner, Chinese renminbi and Swiss franc. Certain foreign currency derivative instruments are treated as cash flow hedges of forecasted transactions. All foreign exchange contracts are due within two years . The Company does not use derivatives for speculative or trading purposes or to manage commodity exposures. Changes in the fair market value of derivatives that qualify as fair value hedges or cash flow hedges are recorded directly to earnings or accumulated other non-owner changes to equity, depending on the designation. Amounts recorded to accumulated other non-owner changes to equity are reclassified to earnings in a manner that matches the earnings impact of the hedged transaction. Any ineffective portion, or amounts related to contracts that are not designated as hedges, are recorded directly to earnings. The Company's policy for classifying cash flows from derivatives is to report the cash flows consistent with the underlying hedged item. Other financing cash flows during the years ended December 31, 2017 and 2016 , as presented on the consolidated statements of cash flows, include $18,256 of net cash payments and $5,221 of net cash proceeds, respectively, related to the settlement of foreign currency hedges related to intercompany financing. The following table sets forth the fair value amounts of derivative instruments held by the Company as of December 31. 2017 2016 Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives Derivatives designated as hedging instruments: Interest rate contracts $ 654 $ — $ — $ (78 ) Foreign exchange contracts — (379 ) — (177 ) 654 (379 ) — (255 ) Derivatives not designated as hedging instruments: Foreign exchange contracts 58 (29 ) 397 (1,499 ) Total derivatives $ 712 $ (408 ) $ 397 $ (1,754 ) Asset derivatives related to interest rate contracts and foreign exchange contracts are recorded in other assets and prepaid expenses and other current assets, respectively, in the accompanying consolidated balance sheets. Liability derivatives related to interest rate contracts and foreign exchange contracts are recorded in other liabilities and accrued liabilities, respectively, in the accompanying consolidated balance sheets. The following table sets forth the (loss) gain recorded in accumulated other comprehensive income (loss), net of tax, for the years ended December 31, 2017 and 2016 for derivatives held by the Company and designated as hedging instruments. 2017 2016 Cash flow hedges: Interest rate contracts $ 460 $ 174 Foreign exchange contracts (161 ) (516 ) $ 299 $ (342 ) Amounts related to the interest rate swaps included within accumulated other comprehensive income (loss) that were reclassified to expense during the years ended December 31, 2017 and 2016 resulted in a fixed rate of interest plus the borrowing spread for the first $100,000 of one-month LIBOR borrowings. The fixed rate of interest was 1.92% for the period covered by the Swap, which matures in January 2022, and 1.03% for the Swaps, which matured in April 2017. Additionally, there were no amounts recognized in income for hedge ineffectiveness during the years ended December 31, 2017 and 2016 . The following table sets forth the net (loss) gains recorded in other expense (income), net in the consolidated statements of income for the years ended December 31, 2017 and 2016 for non-designated derivatives held by the Company. Such amounts were substantially offset by the net (gain) loss recorded on the underlying hedged asset or liability, also recorded in other expense (income), net. 2017 2016 Foreign exchange contracts $ (16,813 ) $ 2,297

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The provisions of the accounting standard for fair value define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. This standard classifies the inputs used to measure fair value into the following hierarchy: Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability. Level 3 Unobservable inputs for the asset or liability. The following table provides the assets and liabilities reported at fair value and measured on a recurring basis as of December 31, 2017 and 2016 : Fair Value Measurements Using Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2017 Asset derivatives $ 712 $ — $ 712 $ — Liability derivatives (408 ) — (408 ) — Bank acceptances 16,092 — 16,092 — Rabbi trust assets 2,554 2,554 — — $ 18,950 $ 2,554 $ 16,396 $ — December 31, 2016 Asset derivatives $ 397 $ — $ 397 $ — Liability derivatives (1,754 ) — (1,754 ) — Bank acceptances 9,690 — 9,690 — Rabbi trust assets 2,216 2,216 — — $ 10,549 $ 2,216 $ 8,333 $ — The derivative contracts are valued using observable current market information as of the reporting date such as the prevailing LIBOR-based interest rates and foreign currency spot and forward rates. Bank acceptances represent financial instruments accepted from certain Chinese customers in lieu of cash paid on receivables, generally range from 3 to 6 months in maturity and are guaranteed by banks. The carrying amounts of the bank acceptances, which are included within prepaid expenses and other current assets, approximate fair value due to their short maturities. The fair values of rabbi trust assets are based on quoted market prices from various financial exchanges. For disclosures of the fair values of the Company’s pension plan assets, see Note 11 of the Consolidated Financial Statements.

Pension and Other Postretiremen

Pension and Other Postretirement Benefits	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Pension and Other Postretirement Benefits	Pension and Other Postretirement Benefits The accounting standards related to employers’ accounting for defined benefit pension and other postretirement plans requires the Company to recognize the funded status of its defined benefit postretirement plans as assets or liabilities in the accompanying consolidated balance sheets and to recognize changes in the funded status of the plans in comprehensive income. The Company has various defined contribution plans, the largest of which is its Retirement Savings Plan. Most U.S. salaried and non-union hourly employees are eligible to participate in this plan. See Note 16 for further discussion of the Retirement Savings Plan. The Company also maintains various other defined contribution plans which cover certain other employees. Company contributions under these plans are based primarily on the performance of the business units and employee compensation. Contribution expense under these other defined contribution plans was $6,644 , $5,907 and $5,347 in 2017 , 2016 and 2015 , respectively. Defined benefit pension plans in the U.S. cover a majority of the Company’s U.S. employees at the Associated Spring and Nitrogen Gas Products businesses of Industrial, the Company’s Corporate Office and certain former U.S. employees, including retirees. Plan benefits for salaried and non-union hourly employees are based on years of service and average salary. Plans covering union hourly employees provide benefits based on years of service. In 2012, the Company closed the U.S. salaried defined benefit pension plan (the "U.S. Salaried Plan") to employees hired on or after January 1, 2013, with no impact to the benefits of existing participants. Effective January 1, 2013, the Retirement Savings Plan was amended to provide certain salaried employees hired on or after January 1, 2013 with an additional annual retirement contribution of 4% of eligible earnings, in place of pensionable benefits under the closed U.S. Salaried Plan. The Company funds U.S. pension costs in accordance with the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). Non-U.S. defined benefit pension plans cover certain employees of certain international locations in Europe and Canada. The Company provides other medical, dental and life insurance postretirement benefits for certain of its retired employees in the U.S. and Canada. It is the Company’s practice to fund these benefits as incurred. The accompanying balance sheets reflect the funded status of the Company’s defined benefit pension plans at December 31, 2017 and 2016 , respectively. Reconciliations of the obligations and funded status of the plans follow: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Benefit obligation, January 1 $ 389,613 $ 104,339 $ 493,952 $ 385,629 $ 75,406 $ 461,035 Service cost 3,931 2,124 6,055 3,892 1,503 5,395 Interest cost 17,151 1,668 18,819 17,523 1,971 19,494 Amendments 1,233 27 1,260 2,405 (174 ) 2,231 Actuarial loss (gain) 28,350 (4,397 ) 23,953 6,661 10,814 17,475 Benefits paid (24,909 ) (4,240 ) (29,149 ) (26,497 ) (4,691 ) (31,188 ) Transfers in — 2,743 2,743 — 25,968 25,968 Plan curtailments — (7,030 ) (7,030 ) — — — Plan settlements — (21,074 ) (21,074 ) — — — Participant contributions — 1,355 1,355 — 1,444 1,444 Foreign exchange rate changes — 7,226 7,226 — (7,902 ) (7,902 ) Benefit obligation, December 31 415,369 82,741 498,110 389,613 104,339 493,952 Fair value of plan assets, January 1 331,260 85,652 416,912 326,829 68,553 395,382 Actual return on plan assets 56,131 6,150 62,281 13,051 7,276 20,327 Company contributions 12,896 2,027 14,923 17,877 2,224 20,101 Participant contributions — 1,355 1,355 — 1,444 1,444 Benefits paid (24,909 ) (4,240 ) (29,149 ) (26,497 ) (4,691 ) (31,188 ) Plan settlements — (20,857 ) (20,857 ) — — — Transfers in — 2,743 2,743 — 18,320 18,320 Foreign exchange rate changes — 6,230 6,230 — (7,474 ) (7,474 ) Fair value of plan assets, December 31 375,378 79,060 454,438 331,260 85,652 416,912 Underfunded status, December 31 $ (39,991 ) $ (3,681 ) $ (43,672 ) $ (58,353 ) $ (18,687 ) $ (77,040 ) In 2017, the Company authorized the closure of it's FOBOHA facility located in Muri, Switzerland, resulting in the pension curtailments and settlements noted above. See Note 8 of the Consolidated Financial Statements for additional information related to this Closure. Projected benefit obligations related to pension plans with benefit obligations in excess of plan assets follow: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Projected benefit obligation $ 311,320 $ 40,931 $ 352,251 $ 389,613 $ 61,060 $ 450,673 Fair value of plan assets 267,087 26,205 293,292 331,260 39,356 370,616 Information related to pension plans with accumulated benefit obligations in excess of plan assets follows: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Projected benefit obligation $ 40,572 $ 40,931 $ 81,503 $ 389,613 $ 61,014 $ 450,627 Accumulated benefit obligation 40,090 40,877 80,967 378,431 59,568 437,999 Fair value of plan assets 4,797 26,205 31,002 331,260 39,356 370,616 The accumulated benefit obligation for all defined benefit pension plans was $485,777 and $481,241 at December 31, 2017 and 2016 , respectively. Amounts related to pensions recognized in the accompanying balance sheets consist of: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Other assets $ 4,242 $ 11,045 $ 15,287 $ — $ 3,017 $ 3,017 Accrued liabilities 2,823 407 3,230 2,813 367 3,180 Accrued retirement benefits 41,410 14,319 55,729 55,540 21,337 76,877 Accumulated other non-owner changes to equity, net (84,990 ) (13,016 ) (98,006 ) (91,530 ) (19,458 ) (110,988 ) Amounts related to pensions recognized in accumulated other non-owner changes to equity, net of tax, at December 31, 2017 and 2016 , respectively, consist of: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial loss $ (82,736 ) $ (13,237 ) $ (95,973 ) $ (89,772 ) $ (19,822 ) $ (109,594 ) Prior service costs (2,254 ) 221 (2,033 ) (1,758 ) 364 (1,394 ) $ (84,990 ) $ (13,016 ) $ (98,006 ) $ (91,530 ) $ (19,458 ) $ (110,988 ) The accompanying balance sheets reflect the underfunded status of the Company’s other postretirement benefit plans at December 31, 2017 and 2016 . Reconciliations of the obligations and underfunded status of the plans follow: 2017 2016 Benefit obligation, January 1 $ 36,853 $ 41,706 Service cost 83 122 Interest cost 1,561 1,766 Actuarial loss (gain) 3,806 (3,495 ) Benefits paid (7,251 ) (5,621 ) Participant contributions 2,209 2,281 Foreign exchange rate changes 309 94 Benefit obligation, December 31 37,570 36,853 Fair value of plan assets, January 1 — — Company contributions 5,042 3,340 Participant contributions 2,209 2,281 Benefits paid (7,251 ) (5,621 ) Fair value of plan assets, December 31 — — Underfunded status, December 31 $ 37,570 $ 36,853 Amounts related to other postretirement benefits recognized in the accompanying balance sheets consist of: 2017 2016 Accrued liabilities $ 5,064 $ 5,081 Accrued retirement benefits 32,506 31,772 Accumulated other non-owner changes to equity, net (5,838 ) (3,582 ) Amounts related to other postretirement benefits recognized in accumulated other non-owner changes to equity, net of tax, at December 31, 2017 and 2016 consist of: 2017 2016 Net actuarial loss $ (5,746 ) $ (3,532 ) Prior service loss (92 ) (50 ) $ (5,838 ) $ (3,582 ) The sources of changes in accumulated other non-owner changes to equity, net, during 2017 were: Pension Other Postretirement Benefits Prior service cost $ (800 ) $ — Net (loss) gain 7,787 (2,392 ) Amortization of prior service (credits) costs 117 (43 ) Amortization of actuarial loss 7,140 170 Foreign exchange rate changes (1,262 ) 9 $ 12,982 $ (2,256 ) Weighted-average assumptions used to determine benefit obligations as of December 31, are: 2017 2016 U.S. plans: Discount rate 3.90 % 4.50 % Increase in compensation 2.56 % 2.56 % Non-U.S. plans: Discount rate 1.90 % 1.60 % Increase in compensation 2.17 % 2.29 % The investment strategy of the plans is to generate a consistent total investment return sufficient to pay present and future plan benefits to retirees, while minimizing the long-term cost to the Company. Target allocations for asset categories are used to earn a reasonable rate of return, provide required liquidity and minimize the risk of large losses. Targets may be adjusted, as necessary, to reflect trends and developments within the overall investment environment. The weighted-average target investment allocations by asset category were as follows during 2017 : 65% in equity securities and 35% in fixed income securities, including cash. The fair values of the Company’s pension plan assets at December 31, 2017 and 2016 , by asset category are as follows: Fair Value Measurements Using Asset Category Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2017 Cash and short-term investments $ 10,731 $ 10,731 $ — $ — Equity securities: U.S. large-cap 46,786 — 46,786 — U.S. mid-cap 15,576 15,576 — — U.S. small-cap 16,157 16,157 — — International equities 159,803 — 159,803 — Global equity 51,945 51,945 — — Fixed income securities: U.S. bond funds 109,033 — 109,033 — International bonds 41,742 — 41,742 — Other 2,665 — — 2,665 $ 454,438 $ 94,409 $ 357,364 $ 2,665 December 31, 2016 Cash and short-term investments 3,207 3,207 — — Equity securities: U.S. large-cap 39,162 — 39,162 — U.S. mid-cap 12,724 12,724 — — U.S. small-cap 19,551 19,551 — — International equities 135,514 — 135,514 — Global equity 47,445 47,445 — — Fixed income securities: U.S. bond funds 103,399 — 103,399 — International bonds 53,783 — 53,783 — Other 2,127 — — 2,127 $ 416,912 $ 82,927 $ 331,858 $ 2,127 The fair values of the Level 1 assets are based on quoted market prices from various financial exchanges. The fair values of the Level 2 assets are based primarily on quoted prices in active markets for similar assets or liabilities. The Level 2 assets are comprised primarily of commingled funds and fixed income securities. Commingled equity funds are valued at their net asset values based on quoted market prices of the underlying assets. Fixed income securities are valued using a market approach which considers observable market data for the underlying asset or securities. The Level 3 assets relate to the defined benefit pension plan at the Synventive business. These pension assets are fully insured and have been estimated based on accrued pension rights and actuarial rates. These pension assets are limited to fulfilling the Company's pension obligations. The Company expects to contribute approximately $4,600 to the pension plans in 2018 . No contributions to the U.S. Qualified pension plans, specifically, are required, and the Company does not currently plan to make any discretionary contributions to such plans in 2018. The following are the estimated future net benefit payments, which include future service, over the next 10 years: Pensions Other Postretirement Benefits 2018 $ 29,261 $ 3,653 2019 29,243 3,485 2020 29,086 3,204 2021 29,205 3,014 2022 29,378 2,848 Years 2023-2027 144,074 11,722 Total $ 290,247 $ 27,926 Pension and other postretirement benefit costs consist of the following: Pensions Other Postretirement Benefits 2017 2016 2015 2017 2016 2015 Service cost $ 6,055 $ 5,395 $ 5,508 $ 83 $ 122 $ 145 Interest cost 18,819 19,494 20,019 1,561 1,766 1,836 Expected return on plan assets (28,082 ) (30,302 ) (32,404 ) — — — Amortization of prior service cost (credit) 446 210 305 (68 ) (373 ) (564 ) Recognized losses 10,557 10,791 15,004 276 535 1,011 Curtailment gain (7,217 ) — — — — — Settlement (gain) loss (119 ) — 9,939 — — — Net periodic benefit cost $ 459 $ 5,588 $ 18,371 $ 1,852 $ 2,050 $ 2,428 In 2015, the Company announced a limited-time program offering (the "Program") to certain eligible, vested, terminated participants ("eligible participants") for a voluntary lump-sum pension payout or reduced annuity option that, if accepted, would settle the Company's pension obligation to them. The Program provided the eligible participants with a limited time opportunity of electing to receive a lump-sum settlement of their remaining pension benefit, or reduced annuity. The resultant pre-tax settlement charge of $9,856 represents accelerated amortization of actuarial losses and is included the settlement loss above. This settlement charge was reflected within costs of sales and selling and administrative expenses within the Consolidated Statements of Income. The Closure of the Company's FOBOHA facility located in Muri, Switzerland, as discussed above, resulted in a pre-tax curtailment gain of $7,217 during the 2017 period. See Note 8 of the Consolidated Financial Statements. The estimated net actuarial loss and prior service cost for the defined benefit pension plans that will be amortized from accumulated other non-owner changes to equity into net periodic benefit cost in 2018 are $11,222 and $562 , respectively. The estimated net actuarial loss and prior service credit for other defined benefit postretirement plans that will be amortized from accumulated other non-owner changes to equity into net periodic benefit cost in 2018 are $641 and $20 , respectively. Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31, are: 2017 2016 2015 U.S. plans: Discount rate 4.50 % 4.65 % 4.25 % Long-term rate of return 7.75 % 8.25 % 8.25 % Increase in compensation 2.56 % 3.71 % 3.71 % Non-U.S. plans: Discount rate 1.60 % 2.80 % 2.74 % Long-term rate of return 3.59 % 4.73 % 5.00 % Increase in compensation 2.29 % 2.71 % 2.72 % The expected long-term rate of return is based on consideration of projected rates of return and the historical rates of return of published indices that reflect the plans’ target asset allocation. The Company’s accumulated postretirement benefit obligations, exclusive of pensions, take into account certain cost-sharing provisions. The annual rate of increase in the cost of covered benefits (i.e., health care cost trend rate) is assumed to be 6.86% and 6.44% at December 31, 2017 and 2016 , respectively, decreasing gradually to a rate of 4.50% by December 31, 2038 . A one percentage point change in the assumed health care cost trend rate would have the following effects: One Percentage Point Increase One Percentage Point Decrease Effect on postretirement benefit obligation $ 261 $ (242 ) Effect on postretirement benefit cost 11 (10 ) The Company actively contributes to a Swedish pension plan that supplements the Swedish social insurance system. The pension plan guarantees employees a pension based on a percentage of their salary and represents a multi-employer pension plan, however the pension plan was not significant in any year presented. This pension plan is not underfunded. Contributions related to the individually insignificant multi-employer plans, as disclosure is required pursuant to the applicable accounting standards, are as follows: Contributions by the Company Pension Fund: 2017 2016 2015 Swedish Pension Plan 739 $ 673 $ 343 Total Contributions $ 739 $ 673 $ 343

Stock-based Compensation

Stock-based Compensation	12 Months Ended
	Dec. 31, 2017
Share-based Compensation [Abstract]
Stock-based Compensation	Stock-Based Compensation The Company accounts for the cost of all share-based payments, including stock options, by measuring the payments at fair value on the grant date and recognizing the cost in the results of operations. The fair values of stock options are estimated using the Black-Scholes option-pricing model based on certain assumptions. The fair values of service and performance based stock awards are estimated based on the fair market value of the Company’s stock price on the grant date. The fair value of market based performance share awards are estimated using the Monte Carlo valuation method. Estimated forfeiture rates are applied to outstanding awards. Refer to Note 16 for a description of the Company’s stock-based compensation plans and their general terms. As of December 31, 2017 , incentives have been awarded in the form of performance share awards and restricted stock unit awards (collectively, “Rights”) and stock options. The Company has elected to use the straight-line method to recognize compensation costs. Stock options and awards typically vest over a period ranging from six months to five years . The maximum term of stock option awards is 10 years. Upon exercise of a stock option or upon vesting of Rights, shares may be issued from treasury shares held by the Company or from authorized shares. In March 2016, the FASB amended its guidance related to the accounting for certain aspects of share-based payments to employees. The amended guidance requires that all tax effects related to share-based payments are recorded at settlement (or expiration) through the income statement, rather than through equity. Cash flows related to excess tax benefits will no longer be separately classified as a financing activity apart from other income tax cash flows. The amended guidance also allows for an employer to repurchase additional employee shares for tax withholding purposes without requiring liability accounting and clarifies that all cash payments made to tax authorities on an employee’s behalf for withheld shares should be presented as a financing activity on the Consolidated Statements of Cash Flows. The guidance also allows for a policy election to account for forfeitures as they occur, rather than accounting for them on an estimated basis. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. Early adoption is permitted. The Company elected to early adopt this guidance in the third quarter of 2016. This adoption requires the Company to reflect any adjustments as of January 1, 2016, the beginning of the annual period that includes the interim period of adoption. The most significant impact of adoption was the recognition of excess tax benefits in the provision for income taxes rather than through equity for all periods in fiscal year 2016. This resulted in the recognition of excess tax benefits in the provision for income taxes of $2,229 for the year ended December 31, 2016. In 2015, the Company recorded $2,667 of excess tax benefits for current year tax deductions in additional paid-in capital, as was required pursuant to the earlier accounting guidance. In connection with the additional amendments within the amended guidance, the Company recognized state tax loss carryforwards in the amount of $198 , which impacted retained earnings as of January 1, 2016. The cumulative effect of this change is required to be recorded in retained earnings. The Company elected to continue to estimate forfeitures expected to occur to determine the amount of compensation cost to be recognized in each period. The presentation requirements for cash flows related to excess tax benefits and employee taxes paid for withheld shares were applied retrospectively to all periods presented. This resulted in an increase in both net cash provided by operating activities and net cash used by financing activities of $1,402 , $2,320 , $7,519 and $7,580 for the three, six, nine and twelve month periods ended March 31, June 30, September 30 and December 31, 2015, respectively, and $413 and $524 for the three and six month periods ended March 31 and June 30, 2016, respectively. During 2017 , 2016 and 2015 , the Company recognized $12,285 , $11,493 , and $9,258 respectively, of stock-based compensation cost and $4,579 , $4,284 , and $3,451 respectively, of related tax benefits in the accompanying consolidated statements of income. Additionally, the Company recognized excess tax benefits in the tax provision of $2,463 and $2,229 in 2017 and 2016 , respectively. The Company has realized all available tax benefits related to deductions from excess stock awards exercised or restricted stock unit awards and performance share awards vested. At December 31, 2017 , the Company had $12,940 of unrecognized compensation costs related to unvested awards which are expected to be recognized over a weighted average period of 2.85 years. The following table summarizes information about the Company’s stock option awards during 2017 : Number of Shares Weighted-Average Exercise Price Outstanding, January 1, 2017 589,160 $ 28.67 Granted 131,416 47.80 Exercised (84,393 ) 23.28 Forfeited (17,403 ) 39.82 Outstanding, December 31, 2017 618,780 33.15 The following table summarizes information about stock options outstanding at December 31, 2017 : Options Outstanding Options Exercisable Range of Exercise Prices Number of Shares Average Remaining Life (Years) Average Exercise Price Number of Shares Average Exercise Price $11.45 to $15.83 67,130 1.5 $ 13.43 67,130 $ 13.43 $20.69 to $26.32 77,955 4.2 23.56 77,955 23.56 $26.38 to $30.71 146,828 7.5 30.26 58,173 29.58 $34.92 to $37.13 195,005 6.9 36.40 142,844 36.59 $38.93 to $63.38 131,862 9.0 47.28 5,750 38.96 The Company received cash proceeds from the exercise of stock options of $1,964 , $4,184 and $11,022 in 2017 , 2016 and 2015 , respectively. The total intrinsic value (the amount by which the stock price exceeds the exercise price of the option on the date of exercise) of the stock options exercised during 2017 , 2016 and 2015 was $2,887 , $4,464 and $8,331 , respectively. The weighted-average grant date fair value of stock options granted in 2017 , 2016 and 2015 was $10.31 , $7.01 and $8.86 , respectively. The fair value of each stock option grant on the date of grant was estimated using the Black-Scholes option-pricing model based on the following weighted average assumptions: 2017 2016 2015 Risk-free interest rate 1.90 % 1.20 % 1.58 % Expected life (years) 5.3 5.3 5.3 Expected volatility 26.1 % 29.1 % 31.1 % Expected dividend yield 1.82 % 1.94 % 2.06 % The risk-free interest rate is based on the term structure of interest rates at the time of the option grant. The expected life represents an estimate of the period of time that options are expected to remain outstanding. Assumptions of expected volatility of the Company’s common stock and expected dividend yield are estimates of future volatility and dividend yields based on historical trends. The following table summarizes information about stock options outstanding that are expected to vest and stock options outstanding that are exercisable at December 31, 2017 : Options Outstanding, Expected to Vest Options Outstanding, Exercisable Shares Weighted- Average Exercise Price Aggregate Intrinsic Value Weighted- Average Remaining Term (Years) Shares Weighted- Average Exercise Price Aggregate Intrinsic Value Weighted- Average Remaining Term (Years) 598,986 $ 33.15 $ 18,041 6.58 351,852 $ 28.16 $ 12,352 5.16 The following table summarizes information about the Company’s Rights during 2017 : Service Based Rights Service and Performance Based Rights Service and Market Based Rights Number of Units Weighted-Average Grant Date Fair Value Number of Units Weighted-Average Grant Date Fair Value Number of Units Weighted-Average Grant Date Fair Value Outstanding, January 1, 2017 347,304 $ 31.86 172,042 $ 34.74 116,746 $ 52.24 Granted 122,696 50.30 43,506 47.69 43,506 74.20 Forfeited (14,573 ) 37.77 (4,660 ) 57.83 (4,363 ) 43.39 Additional Earned — — 18,370 37.00 3,946 50.45 Issued (144,903 ) 57.80 (73,364 ) 37.00 (31,443 ) 50.45 Outstanding, December 31, 2017 310,524 155,894 128,392 The Company granted 122,696 restricted stock unit awards and 87,012 performance share awards in 2017 . All of the restricted stock unit awards vest upon meeting certain service conditions. "Additional Earned" reflects performance share awards earned above target that have been issued. The performance share awards are part of the long-term Performance Share Award Program (the "Awards Program"), which is designed to assess the long-term Company performance relative to the performance of companies included in the Russell 2000 Index or to pre-established goals. The performance goals are independent of each other and based on equally weighted metrics. For awards granted in 2015, the metrics included the Company's total shareholder return ("TSR"), operating income before depreciation and amortization growth ("EBITDA growth") and return on invested capital ("ROIC"). For awards granted in 2016 and 2017, the metrics included TSR and ROIC. The TSR and EBITDA growth metrics are designed to assess the long-term Company performance relative to the performance of companies included in the Russell 2000 Index over a three year period. ROIC is designed to assess the Company’s performance compared to pre-established goals over a three year performance period. The participants can earn from zero to 250% of the target award and the award includes a forfeitable right to dividend equivalents, which are not included in the aggregate target award numbers. Compensation expense for the awards is recognized over the three year service period based upon the value determined under the intrinsic value method for the Earnings per share growth, EBITDA growth and ROIC portions of the award and the Monte Carlo simulation valuation model for the TSR portion of the award since it contains a market condition. The assumptions used to determine the weighted-average fair values of the market based portion of the 2017 awards include a 1.40% risk-free interest rate and a 24.76% expected volatility rate. Compensation expense for the TSR portion of the awards is fixed at the date of grant and will not be adjusted in future periods based upon the achievement of the TSR performance goal. Compensation expense for the Earnings per share growth, EBITDA growth and the ROIC portions of the awards is recorded each period based upon a probability assessment of achieving the goals with a final adjustment at the end of the service period based upon the actual achievement of those performance goals.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The components of Income from continuing operations before income taxes and Income taxes follow: 2017 2016 2015 Income from continuing operations before income taxes: U.S. $ 3,082 $ 34,129 $ 11,525 International 192,617 148,492 146,421 Income from continuing operations before income taxes $ 195,699 $ 182,621 $ 157,946 Income tax provision: Current: U.S. – federal $ 77,799 $ 7,215 $ (210 ) U.S. – state 1,762 755 2,019 International 48,032 41,516 32,217 127,593 49,486 34,026 Deferred: U.S. – federal $ 9,596 $ 6,091 $ 7,670 U.S. – state 819 1,060 (1,137 ) International (1,724 ) (9,617 ) (3,993 ) 8,691 (2,466 ) 2,540 Income taxes $ 136,284 $ 47,020 $ 36,566 On December 22, 2017 the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Act”). The Act reduced the U.S. Corporate income tax rate from 35% to 21%, effective January 1, 2018. As required, the Company re-measured its U.S. deferred tax assets and liabilities as of December 31, 2017, applying the reduced U.S. Corporate income tax rate. As a result, the Company recorded a provisional adjustment of $4,152 to net expense, with a corresponding reduction to the U.S. net deferred asset. The Company was capable of reasonably estimating the impact of the reduction to the U.S. Corporate tax rate on the deferred tax balances, however the estimate may be affected by other aspects of the Act, such as the calculation of deferred foreign income and the state effect of adjustments made to federal temporary differences. The Act taxes certain unrepatriated earnings and profits (“E&P”) of our foreign subsidiaries. In order to determine the Transition Tax we must determine, along with other information, the amount of our accumulated post 1986 E&P for our foreign subsidiaries, as well as the non U.S. income tax paid by those subsidiaries on such E&P. We were capable of reasonably estimating the Transition Tax and recorded a provisional Transition Tax expense of $86,707 . However, we continue to gather information which may adjust the computed Transition Tax. Furthermore, certain provisions of the Act are ambiguous as to the details of the computation of the Transition tax, thereby requiring us to await further guidance from the U.S. Treasury Department and the Internal Revenue Service. As a result of the Transition Tax the Company will be recording income as if the earnings had been repatriated. This income may be subject to additional taxation at the state level. We were able to make a reasonable estimate of the state taxation of these earnings and recorded a provisional expense of $1,423 . While we were able to make a reasonable estimate of the impact of state taxation on the deemed repatriation of deferred foreign income, it may be affected by changes in the computation resulting from the gathering of additional information as well as future guidance provided by the state tax authorities. U.S. Tax Reform required the mandatory deemed repatriation of certain undistributed earnings of the Company’s international subsidiaries as of December 31, 2017. If the earnings were distributed in the form of cash dividends, the Company would not be subject to additional U.S. income taxes but could be subject to foreign income and withholding taxes. Under accounting standards (ASC 740) a deferred tax liability is not recorded for the excess of the tax basis over the financial reporting (book) basis of an investment in a foreign subsidiary if the indefinite reinvestment criteria is met. On December 31, 2017, the Company's unremitted foreign earnings were $1,228,170 . Pursuant to SAB 118, if an entity has completed all or portions of its assessment and has made a decision to repatriate and has the ability to reasonably estimate the effects of that assessment, that entity should record a provisional expense and disclose the status of its efforts. The Company is continuing to evaluate its indefinite assertions related to its foreign earnings, but expects to repatriate certain earnings which would be subject to withholding and foreign income tax. For amounts currently expected to be repatriated, the Company recorded a provisional expense of $6,932 . These amounts are provisional in nature given the uncertainty related to the taxation of the distributions under the Act and the finalization of the Company’s analysis on its indefinite reinvestment assertion. During 2017, the Company repatriated a dividend from a portion of current year foreign earnings to the U.S. in the amount of $7,250 . The dividend was not taxable in the U.S. as the amount was included within the Transition Tax. Deferred income tax assets and liabilities at December 31 consist of the tax effects of temporary differences related to the following: 2017 2016 Deferred tax assets: Pension $ 13,255 $ 27,410 Tax loss carryforwards 16,078 16,686 Inventory valuation 10,568 15,518 Other postretirement/postemployment costs 9,440 14,071 Accrued Compensation 5,743 10,121 Other 4,018 6,489 Valuation allowance (10,223 ) (14,957 ) Total deferred tax assets 48,879 75,338 Deferred tax liabilities: Depreciation and amortization (82,422 ) (89,198 ) Goodwill (9,440 ) (14,871 ) Other (18,361 ) (12,282 ) Total deferred tax liabilities (110,223 ) (116,351 ) Net deferred tax liabilities $ (61,344 ) $ (41,013 ) In the first quarter of 2016, the Company prospectively adopted the amended guidance related to the balance sheet classification of deferred income taxes. The amended guidance removed the requirement to separate and classify deferred income tax liabilities and assets into current and non-current amounts and required an entity to now classify all deferred tax liabilities and assets as non-current. The provisions of the amended guidance were adopted on a prospective basis during the first quarter of 2016. Amounts related to deferred taxes in the balance sheets as of December 31, 2017 and 2016 are presented as follows: 2017 2016 Non-current deferred tax assets $ 12,161 $ 25,433 Non-current deferred tax liabilities (73,505 ) (66,446 ) Net deferred tax liabilities $ (61,344 ) $ (41,013 ) The standards related to accounting for income taxes require that deferred tax assets be reduced by a valuation allowance if, based on all available evidence, it is more likely than not that the deferred tax asset will not be realized. Available evidence includes the reversal of existing taxable temporary differences, future taxable income exclusive of temporary differences, taxable income in carryback years and tax planning strategies. Management believes that sufficient taxable income should be earned in the future to realize the net deferred tax assets principally in the United States. The realization of these assets is dependent in part on the amount and timing of future taxable income in the jurisdictions where deferred tax assets reside. The Company has tax loss carryforwards of $62,285 ; $3,224 which relates to U.S tax loss carryforwards which have carryforward periods up to 20 years for federal purposes and ranging from one to 20 years for state purposes; $46,255 of which relates to international tax loss carryforwards with carryforward periods ranging from one to 20 years; and $12,806 of which relates to international tax loss carryforwards with unlimited carryforward periods. In addition, the Company has tax credit carryforwards of $144 with remaining carryforward periods ranging from one year to 5 years. As the ultimate realization of the remaining net deferred tax assets is dependent upon future taxable income, if such future taxable income is not earned and it becomes necessary to recognize a valuation allowance, it could result in a material increase in the Company’s tax expense which could have a material adverse effect on the Company’s financial condition and results of operations. Management is required to assess whether its valuation allowance analysis is affected by various components of the Act including the deemed mandatory repatriation of foreign income for the Transition Tax, future GILTI inclusions and changes to the NOL and FTC rules. Since the Company has recorded provisional amounts related to certain portions of the Act, any corresponding determination of the need for or change in a valuation allowance would be provisional. A reconciliation of the U.S. federal statutory income tax rate to the consolidated effective income tax rate from continuing operations follows: 2017 2016 2015 U.S. federal statutory income tax rate 35.0 % 35.0 % 35.0 % State taxes (net of federal benefit) 0.1 0.4 0.2 Transition Tax 45.0 — — U.S. Corporate Tax Rate change 2.1 — — Indefinite Reinvestment Assertion 3.5 — — Foreign operations taxed at different rates (11.5 ) (10.9 ) (12.9 ) Foreign losses without tax benefit 1.5 0.7 1.1 Repatriation from current year foreign earnings — 1.6 4.3 Tax withholding refund — — (1.9 ) Tax Holidays (0.8 ) (1.2 ) (3.2 ) Stock awards excess tax benefit (1.2 ) (1.2 ) — Swiss Legal Entity Reduction (3.4 ) — — Audit Settlements (2.7 ) — — Other 2.0 1.3 0.6 Consolidated effective income tax rate 69.6 % 25.7 % 23.2 % Payment of the Transition Tax assessed is required over an eight-year period. The short-term portion of the Transition Tax payable, $6,937 , has been included within Accrued Liabilities on the Consolidated Balance Sheet as of December 31, 2017. The long-term portion of the assessment, $79,770 , is included as a Long-term tax liability on the Consolidated Balance Sheet and is payable as follows: $6,937 annually in 2019 through 2022; $13,005 in 2023; $17,341 in 2024 and $21,676 in 2025. The Aerospace and Industrial Segments were previously awarded a number of multi-year tax holidays in both Singapore and China. Tax benefits of $1,540 ( $0.03 per diluted share), $2,245 ( $0.04 per diluted share) and $5,000 ( $0.09 per diluted share) were realized in 2017 , 2016 and 2015 , respectively. These holidays are subject to the Company meeting certain commitments in the respective jurisdictions. Most tax holidays expired in 2017. Income taxes paid globally, net of refunds, were $51,548 , $40,842 and $31,895 in 2017 , 2016 and 2015 , respectively. As of December 31, 2017 , 2016 and 2015 , the total amount of unrecognized tax benefits recorded in the consolidated balance sheet was $9,209 , $13,320 and $10,634 , respectively, which, if recognized, would have reduced the effective tax rate in prior years, with the exception of amounts related to acquisitions. A reconciliation of the unrecognized tax benefits for 2017 , 2016 and 2015 follows: 2017 2016 2015 Balance at January 1 $ 13,320 $ 10,634 $ 8,560 Increase (decrease) in unrecognized tax benefits due to: Tax positions taken during prior periods 1,141 — 1,691 Tax positions taken during the current period 778 117 — Acquisition — 2,569 598 Settlements (4,162 ) — — Lapse of the applicable statute of limitations (1,868 ) — (215 ) Balance at December 31 $ 9,209 $ 13,320 $ 10,634 The Company recognizes interest and penalties, if any, related to unrecognized tax benefits in income tax expense. The Company recognized interest and penalties as a component of income taxes of $(257) , $(337) , and $616 in the years 2017 , 2016 and 2015 respectively. The liability for unrecognized tax benefits includes gross accrued interest and penalties of $1,576 , $1,838 and $1,923 at December 31, 2017 , 2016 and 2015 , respectively. The Company or its subsidiaries file income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. In the normal course of business, the Company is subject to examination by various taxing authorities, including the IRS in the U.S. and the taxing authorities in other major jurisdictions including China, Germany, Singapore, Sweden and Switzerland. With a few exceptions, tax years remaining open to examination in significant foreign jurisdictions include tax years 2010 and forward and for the U.S. include tax years 2014 and forward. The Company has received the audit report but not the final assessment in Germany for tax years 2010 to 2014 and is also under audit in several states for the period 2013 to 2014.

Common Stock

Common Stock	12 Months Ended
	Dec. 31, 2017
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common Stock	Common Stock There were no shares of common stock issued from treasury in 2017 , 2016 or 2015 . In 2017 , 2016 and 2015 , the Company acquired 677,100 shares, 550,994 shares and 1,352,596 shares, respectively, of the Company’s common stock at a cost of $40,791 , $20,520 and $52,103 , respectively. These amounts exclude shares reacquired to pay for the related income tax upon issuance of shares in accordance with the terms of the Company’s stockholder-approved equity compensation plans and the equity rights granted under those plans ("Reacquired Shares"). These Reacquired Shares were placed in treasury. In 2017 , 2016 and 2015 , 341,837 shares, 621,259 shares and 841,164 shares of common stock, respectively, were issued from authorized shares for the exercise of stock options, various other incentive awards and purchases by the Company's Employee Stock Purchase Plan.

Preferred Stock

Preferred Stock	12 Months Ended
	Dec. 31, 2017
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred Stock	Preferred Stock At December 31, 2017 and 2016 , the Company had 3,000,000 shares of preferred stock authorized, none of which were outstanding.

Stock Plans

Stock Plans	12 Months Ended
	Dec. 31, 2017
Stock Plans [Abstract]
Stock Plans	Stock Plans Most U.S. salaried and non-union hourly employees are eligible to participate in the Company’s 401(k) plan (the "Retirement Savings Plan"). The Retirement Savings Plan provides for the investment of employer and employee contributions in various investment alternatives including the Company’s common stock, at the employee’s direction. The Company contributes an amount equal to 50% of employee contributions up to 6% of eligible compensation. The Company expenses all contributions made to the Retirement Savings Plan. Effective January 1, 2013, the Retirement Savings Plan was amended to provide certain salaried employees hired on or after January 1, 2013 with an additional annual retirement contribution of 4% of eligible earnings. The Company recognized expense of $4,088 , $3,660 and $3,666 in 2017 , 2016 and 2015 , respectively. As of December 31, 2017 , the Retirement Savings Plan held 1,124,360 shares of the Company’s common stock. The Company has an Employee Stock Purchase Plan (“ESPP”) under which eligible employees may elect to have up to the lesser of $25 or 10% of base compensation deducted from their payroll checks for the purchase of the Company’s common stock at 95% of the average market value on the date of purchase. The maximum number of shares which may be purchased under the ESPP is 4,550,000 . The number of shares purchased under the ESPP was 7,734 , 11,804 and 11,246 in 2017 , 2016 and 2015 , respectively. The Company received cash proceeds from the purchase of these shares of $444 , $427 and $403 in 2017 , 2016 and 2015 , respectively. As of December 31, 2017 , 277,671 additional shares may be purchased. The 1991 Barnes Group Stock Incentive Plan (the “1991 Plan”) authorized the granting of incentives to executive officers, directors and key employees in the form of stock options, stock appreciation rights, incentive stock rights and performance unit awards. On May 9, 2014, the 1991 Plan was merged into the 2014 Plan (defined below). The Barnes Group Inc. Employee Stock and Ownership Program (the “2000 Plan”) was approved on April 12, 2000, and subsequently amended on April 10, 2002 by the Company’s stockholders. The 2000 Plan permitted the granting of incentive stock options, nonqualified stock options, restricted stock awards, performance share or cash unit awards and stock appreciation rights, or any combination of the foregoing, to eligible employees to purchase up to 6,900,000 shares of the Company’s common stock. Such shares were authorized and reserved. On May 9, 2014, the 2000 Plan was merged into the 2014 Plan (defined below). The Barnes Group Stock and Incentive Award Plan (the “2004 Plan”) was approved on April 14, 2004, and subsequently amended on April 20, 2006 and May 7, 2010 by the Company’s stockholders. The 2004 Plan permits the issuance of incentive awards, stock option grants and stock appreciation rights to eligible participants to purchase up to 5,700,000 shares of common stock. On May 9, 2014, the 2004 Plan was merged into the 2014 Plan (defined below), and the remaining shares available for future grants under the 2004 Plan, as of the merger date, were made available under the 2014 Plan. The 2014 Barnes Group Stock and Incentive Award Plan (the “2014 Plan”) was approved on May 9, 2014 by the Company's stockholders. The 2014 Plan permits the issuance of incentive awards, stock option grants and stock appreciation rights to eligible participants to purchase up to 6,913,978 shares of common stock. The amount includes shares available for purchase under the 1991, 2000, and 2004 Plans which were merged into the 2014 Plan. The 2014 Plan allows for stock options and stock appreciation rights to be issued at a ratio of 1 :1 and other types of incentive awards at a ratio of 2.84 :1 from the shares available for future grants. As of December 31, 2017 , there were 5,628,950 shares available for future grants under the 2014 Plan, inclusive of Shares Reacquired and shares made available through 2017 forfeitures. As of December 31, 2017 , there were 1,224,275 shares of common stock outstanding to be issued upon the exercise of stock options and the vesting of Rights. Rights under the 2014 Plan entitle the holder to receive, without payment, one share of the Company’s common stock after the expiration of the vesting period. Certain of these Rights are also subject to the satisfaction of established performance goals. Additionally, holders of certain Rights are credited with dividend equivalents, which are converted into additional Rights, and holders of certain restricted stock units are paid dividend equivalents in cash when dividends are paid to other stockholders. All Rights have a vesting period of up to five years . Under the Non-Employee Director Deferred Stock Plan, as amended, each non-employee director who joined the Board of Directors prior to December 15, 2005 was granted the right to receive 12,000 shares of the Company’s common stock upon retirement. In 2017 , 2016 and 2014, $20 , $21 and $26 , respectively, of dividend equivalents were paid in cash related to these shares. Compensation cost related to this plan was $9 , $28 and $16 in 2017 , 2016 and 2015 , respectively. There are 36,000 shares reserved for issuance under this plan. Each non-employee director who joined the Board of Directors subsequent to December 15, 2005 received restricted stock units under the respective 2004 or 2014 Plans that have a grant date value of $50 that vest three years after the date of grant. Total maximum shares reserved for issuance under all stock plans aggregated 7,166,895 at December 31, 2017 .

Weighted Average Shares Outstan

Weighted Average Shares Outstanding	12 Months Ended
	Dec. 31, 2017
Weighted Average Shares Outstanding [Abstract]
Weighted Average Shares Outstanding	Weighted Average Shares Outstanding Net income per common share is computed in accordance with accounting standards related to earnings per share. Basic earnings per share is calculated using the weighted-average number of common shares outstanding during the year. Share-based payment awards that entitle their holders to receive nonforfeitable dividends before vesting should be considered participating securities and, as such, should be included in the calculation of basic earnings per share. The Company’s restricted stock unit awards which contain nonforfeitable rights to dividends are considered participating securities. Diluted earnings per share reflects the assumed exercise and conversion of all dilutive securities. Shares held by the Retirement Savings Plan are considered outstanding for both basic and diluted earnings per share. There are no significant adjustments to net income for purposes of computing income available to common stockholders for the years ended December 31, 2017 , 2016 and 2015 . A reconciliation of the weighted-average number of common shares outstanding used in the calculation of basic and diluted earnings per share follows: Weighted-Average Common Shares Outstanding 2017 2016 2015 Basic 54,073,407 54,191,013 55,028,063 Dilutive effect of: Stock options 258,052 166,986 206,778 Performance share awards 273,839 273,314 278,378 Diluted 54,605,298 54,631,313 55,513,219 The calculation of weighted-average diluted shares outstanding excludes all anti-dilutive shares. During 2017 , 2016 and 2015 , the Company excluded 46,450 , 262,336 and 214,032 stock awards, respectively, from the calculation of diluted weighted-average shares outstanding as the stock awards were considered anti-dilutive.

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income by Component	12 Months Ended
	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Changes in Accumulated Other Comprehensive Income by Component	Changes in Accumulated Other Comprehensive Income by Component The following tables set forth the changes in accumulated other comprehensive income by component for the years ended December 31, 2017 and December 31, 2016 : Gains and Losses on Cash Flow Hedges Pension and Other Postretirement Benefit Items Foreign Currency Items Total January 1, 2017 $ (227 ) $ (114,570 ) $ (86,031 ) $ (200,828 ) Other comprehensive (loss) income before reclassifications to consolidated statements of income (231 ) 3,342 83,404 86,515 Amounts reclassified from accumulated other comprehensive income to the consolidated statements of income 530 7,384 — 7,914 Net current-period other comprehensive income 299 10,726 83,404 94,429 December 31, 2017 $ 72 $ (103,844 ) $ (2,627 ) $ (106,399 ) Gains and Losses on Cash Flow Hedges Pension and Other Postretirement Benefit Items Foreign Currency Items Total January 1, 2016 $ 115 $ (105,703 ) $ (37,664 ) $ (143,252 ) Other comprehensive loss before reclassifications to consolidated statements of income (739 ) (16,137 ) (48,367 ) (65,243 ) Amounts reclassified from accumulated other comprehensive income to the consolidated statements of income 397 7,270 — 7,667 Net current-period other comprehensive loss (342 ) (8,867 ) (48,367 ) (57,576 ) December 31, 2016 $ (227 ) $ (114,570 ) $ (86,031 ) $ (200,828 ) The following table sets forth the reclassifications out of accumulated other comprehensive income by component for the years ended December 31, 2017 and December 31, 2016 : Details about Accumulated Other Comprehensive Income Components Amount Reclassified from Accumulated Other Comprehensive Income Affected Line Item in the Consolidated Statements of Income 2017 2016 Gains and losses on cash flow hedges Interest rate contracts $ (545 ) $ (557 ) Interest expense Foreign exchange contracts (242 ) (61 ) Net sales (787 ) (618 ) Total before tax 257 221 Tax benefit (530 ) (397 ) Net of tax Pension and other postretirement benefit items Amortization of prior-service (cost) credits, net $ (378 ) $ 163 (A) Amortization of actuarial losses (10,833 ) (11,326 ) (A) Curtailment gain 187 — (A) Settlement loss (142 ) — (A) (11,166 ) (11,163 ) Total before tax 3,782 3,893 Tax benefit (7,384 ) (7,270 ) Net of tax Total reclassifications in the period $ (7,914 ) $ (7,667 ) (A) These accumulated other comprehensive income components are included within the computation of net periodic Pension and Other Postretirement Benefits cost. See Note 11.

Information on Business Segment

Information on Business Segments	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Information on Business Segments	Information on Business Segments The Company is organized based upon the nature of its products and services and reports under two global business segments: Industrial and Aerospace. Segment information is consistent with how management reviews the businesses, makes investing and resource allocation decisions and assesses operating performance. The Company has not aggregated operating segments for purposes of identifying these two reportable segments. Industrial is a global manufacturer of highly-engineered, high-quality precision components, products and systems for critical applications serving a diverse customer base in end-markets such as transportation, industrial equipment, consumer products, packaging, electronics, medical devices, and energy. Focused on innovative custom solutions, Industrial participates in the design phase of components and assemblies whereby customers receive the benefits of application and systems engineering, new product development, testing and evaluation, and the manufacturing of final products. Products are sold primarily through its direct sales force and global distribution channels. Industrial's Molding Solutions businesses design and manufacture customized hot runner systems, advanced mold cavity sensors and process control systems, and precision high cavitation mold assemblies - collectively, the enabling technologies for many complex injection molding applications. Industrial's Nitrogen Gas Products business provides innovative cost effective force and motion solutions for sheet metal forming, heavy duty suspension and other selective niche markets for customers worldwide. Industrial's Engineered Components businesses manufacture and supply precision mechanical products used in transportation and industrial applications, including mechanical springs, high-precision punched and fine-blanked components and retention rings. Industrial has a diverse customer base with products purchased by durable goods manufacturers located around the world in industries including transportation, consumer products, packaging, farm and mining equipment, telecommunications, medical devices, home appliances and electronics. Industrial competes with a broad base of large and small companies engaged in the manufacture and sale of custom metal components, products and assemblies, precision molds, and hot runner systems. Industrial competes on the basis of value to customer, quality, service, reliability of supply, engineering and technical capability, geographic reach, product breadth, innovation, design, and price. Industrial has manufacturing, distribution and assembly operations in the United States, Brazil, China, Germany, Italy, Mexico, Singapore, Sweden, Switzerland and the United Kingdom. Industrial also has sales and service operations in the United States, Brazil, Canada, Czech Republic, China/Hong Kong, France, Germany, India, Italy, Japan, Mexico, the Netherlands, Portugal, Singapore, Slovakia, South Africa, South Korea, Spain, Switzerland, Thailand and the United Kingdom. Aerospace is a global provider of fabricated and precision-machined components and assemblies for original equipment manufacturer ("OEM") turbine engine, airframe and industrial gas turbine builders, and the military. Aerospace Aftermarket includes the jet engine component maintenance overhaul and repair business ("MRO") and the spare parts business. MRO includes our Component Repair Programs ("CRPs") and services many of the world's major turbine engine manufacturers, commercial airlines and the military. The spare parts business includes our revenue sharing programs ("RSPs") under which the Company receives an exclusive right to supply designated aftermarket parts over the life of the related aircraft engine program. Aerospace’s OEM business supplements the leading jet engine OEM capabilities and competes with a large number of fabrication and machining companies. Competition is based on quality, engineering and technical capability, product breadth, new product introduction, timeliness, service and price. Aerospace’s fabrication and machining operations, with facilities in Arizona, Connecticut, Mexico, Michigan, Ohio, Utah and Singapore, produce critical engine and airframe components through technically advanced manufacturing processes. The Aerospace aftermarket business supplements jet engine OEMs’ maintenance, repair and overhaul capabilities, and competes with the service centers of major commercial airlines and other independent service companies for the repair and overhaul of turbine engine components. The manufacture and supply of aerospace aftermarket spare parts, including those related to the RSPs, are dependent upon the reliable and timely delivery of high-quality components. Aerospace’s aftermarket facilities, located in Connecticut, Ohio and Singapore, specialize in the repair and refurbishment of highly engineered components and assemblies such as cases, rotating life limited parts, rotating air seals, turbine shrouds, vanes and honeycomb air seals. The Company evaluates the performance of its reportable segments based on the operating profit of the respective businesses, which includes net sales, cost of sales, selling and administrative expenses and certain components of other expense (income), net, as well as the allocation of corporate overhead expenses. Sales between the business segments and between the geographic areas in which the businesses operate are accounted for on the same basis as sales to unaffiliated customers. Additionally, revenues are attributed to countries based on the location of facilities. The following table (in millions) sets forth summarized financial information by reportable business segment: Industrial Aerospace Other Total Company Sales 2017 $ 973.9 $ 462.6 $ — $ 1,436.5 2016 824.2 406.5 — 1,230.8 2015 782.3 411.7 — 1,194.0 Operating profit 2017 $ 127.1 $ 83.2 $ — $ 210.3 2016 129.7 62.5 — 192.2 2015 103.0 65.4 — 168.4 Assets 2017 $ 1,505.4 $ 667.1 $ 193.3 $ 2,365.7 2016 1,356.1 647.8 133.7 2,137.5 2015 1,241.2 654.1 166.5 2,061.9 Depreciation and amortization 2017 $ 54.8 $ 33.6 $ 1.7 $ 90.2 2016 49.5 30.0 0.7 80.2 2015 46.0 30.8 1.3 78.2 Capital expenditures 2017 $ 31.0 $ 27.5 $ 0.2 $ 58.7 2016 25.9 21.1 0.5 47.6 2015 28.7 17.2 0.1 46.0 _________________________ Notes: One customer, General Electric, accounted for 18% , 17% and 18% of the Company’s total revenues in 2017 , 2016 and 2015 , respectively. “Other” assets include corporate-controlled assets, the majority of which are cash and deferred tax assets. A reconciliation of the total reportable segments’ operating profit to income before income taxes follows (in millions): 2017 2016 2015 Operating profit $ 210.3 $ 192.2 $ 168.4 Interest expense 14.6 11.9 10.7 Other expense (income), net — (2.3 ) (0.2 ) Income before income taxes $ 195.7 $ 182.6 $ 157.9 The following table (in millions) summarizes total net sales of the Company by products and services: 2017 2016 2015 Engineered Components Products $ 347.9 $ 332.6 $ 342.2 Molding Solutions Products 487.3 376.6 324.6 Nitrogen Gas Products 138.7 115.0 115.5 Aerospace Original Equipment Manufacturer Products 323.4 288.4 295.7 Aerospace Aftermarket Products and Services 139.2 118.2 116.0 Total net sales $ 1,436.5 $ 1,230.8 $ 1,194.0 The following table (in millions) summarizes total net sales and long-lived assets of the Company by geographic area: Domestic International Other Total Company Sales 2017 $ 638.6 $ 868.3 $ (70.4 ) $ 1,436.5 2016 562.6 727.4 (59.2 ) 1,230.8 2015 589.6 661.7 (57.3 ) 1,194.0 Long-lived assets 2017 $ 366.7 $ 1,218.1 $ — $ 1,584.8 2016 368.2 1,135.5 — 1,503.6 2015 379.2 1,069.9 — 1,449.1 _________________________ Notes: Germany, with sales of $301.7 million, $ 238.3 million and $ 210.5 million in 2017 , 2016 and 2015 , respectively, represents the only international country with revenues in excess of 10% of the Company's total revenues. “Other” revenues represent the elimination of intercompany sales between geographic locations, of which approximately 78% , 82% and 82% were sales from international locations to domestic locations in 2017, 2016 and 2015, respectively. Germany, with long-lived assets of $ 514.0 million , $ 449.9 million and $ 362.7 million as of December 31, 2017 , 2016 and 2015 , respectively, Singapore, with long-lived assets of $ 237.6 million , $ 238.3 million and $ 246.4 million as of December 31, 2017 , 2016 and 2015 , respectively and Switzerland, with long-lived assets of $ 160.0 million , $ 169.3 million and $ 167.0 million as of December 31, 2017 , 2016 and 2015 , respectively, represent the only international countries with long-lived assets that exceeded 10% of the Company's total long-lived assets in those years.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Leases The Company has various noncancellable operating leases for buildings, office space and equipment. Rent expense was $15,325 , $12,939 and $11,166 for 2017 , 2016 and 2015 , respectively. Minimum rental commitments under noncancellable leases in years 2018 through 2022 are $11,926 , $7,760 , $5,613 , $4,890 and $2,265 , respectively, and $7,372 thereafter. The rental expense and minimum rental commitments of leases with step rent provisions are recognized on a straight-line basis over the lease term. Product Warranties The Company provides product warranties in connection with the sale of certain products. From time to time, the Company is subject to customer claims with respect to product warranties. Liabilities related to product warranties and extended warranties were not material as of December 31, 2017 or 2016 .

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract]
Schedule of Valuation and Qualifying Accounts Disclosure	Schedule II—Valuation and Qualifying Accounts Years Ended December 31, 2017 , 2016 and 2015 (In thousands) Allowances for Doubtful Accounts: Balance January 1, 2015 $ 3,873 Provision charged to income 1,248 Doubtful accounts written off (404 ) Other adjustments (1) (632 ) Balance December 31, 2015 4,085 Provision charged to income 863 Doubtful accounts written off (910 ) Other adjustments (1) (46 ) Balance December 31, 2016 3,992 Provision charged to income 1,512 Doubtful accounts written off (297 ) Other adjustments (1) (64 ) Balance December 31, 2017 $ 5,143 ________________ (1) These amounts are comprised primarily of foreign currency translation and other reclassifications. Schedule II—Valuation and Qualifying Accounts Years Ended December 31, 2017 , 2016 and 2015 (In thousands) Valuation Allowance on Deferred Tax Assets: Balance January 1, 2015 $ 15,856 Additions charged to income tax expense 1,043 Reductions charged to other comprehensive income (59 ) Reductions credited to income tax expense (1,216 ) Changes due to foreign currency translation (2,204 ) Acquisitions (1) 981 Balance December 31, 2015 14,401 Additions charged to income tax expense 759 Reductions charged to other comprehensive income (17 ) Reductions credited to income tax expense (2) (5,638 ) Changes due to foreign currency translation (133 ) Acquisition (3) 5,585 Balance December 31, 2016 14,957 Additions charged to income tax expense 1,161 Reductions charged to other comprehensive income (123 ) Reductions credited to income tax expense (4) (6,773 ) Changes due to foreign currency translation 1,001 Balance December 31, 2017 $ 10,223 ________________ (1) The increase in 2015 reflects the valuation allowances recorded at the Thermoplay and Priamus businesses which were acquired in the third and fourth quarters of 2015, respectively. (2) The reductions in 2016 relate primarily to net operating losses that were fully valued. These net operating losses have subsequently expired during 2016 (lapse of applicable carry forward periods) and the corresponding valuation allowance was reduced accordingly. (3) The increase in 2016 reflects the valuation allowance recorded at the FOBOHA business, which was acquired in the third quarter of 2016. (4) The reductions in 2017 relate to the release of valuation allowances associated with net operating losses as a result of the Swiss legal entity reduction.

Summary of Significant Accoun29

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
General	General: The preparation of consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Consolidation	Consolidation: The accompanying consolidated financial statements include the accounts of the Company and all of its subsidiaries. Intercompany transactions and account balances have been eliminated.
Revenue recognition	Revenue recognition : Sales and related cost of sales are recognized when products are shipped or delivered to customers, title has transferred, and the risks and rewards of ownership pass to the customer, provided the earnings process is complete and revenue is measurable. Service revenue is recognized when the related services are performed. In the aerospace manufacturing businesses, the Company recognizes revenue based on the units-of-delivery method in accordance with accounting standards related to accounting for performance of construction-type and certain production-type contracts. Management fees related to the aerospace aftermarket Revenue Sharing Programs ("RSPs") are satisfied through an agreed upon reduction from the sales price of each of the related spare parts. These fees recognize our customer's necessary performance of engine program support activities, such as spare parts administration, warehousing and inventory management, and customer support, and are not separable from our sale of products, and accordingly, they are reflected as a reduction to sales, rather than as costs incurred, when revenues are recognized.
Cash and cash equivalents	Cash and cash equivalents: Cash in excess of operating requirements is invested in short-term, highly liquid, income-producing investments. All highly liquid investments purchased with an original maturity of three months or less are considered cash equivalents. Cash equivalents are carried at cost which approximates fair value.
Inventories	Inventories: Inventories are valued at the lower of cost, determined on a first-in, first-out basis, or net realizable value. Loss provisions, if any, on aerospace contracts are established when estimable. Loss provisions are based on the projected excess of manufacturing costs over the net revenues of the products or group of related products representing firm orders that are supported under a long term agreement
Property, plant and equipment	Property, plant and equipment: Property, plant and equipment is stated at cost. Depreciation is recorded over estimated useful lives, generally ranging from 20 to 50 years for buildings and four to 12 years for machinery and equipment. The straight-line method of depreciation was adopted for all property, plant and equipment placed in service after March 31, 1999. For property, plant and equipment placed into service prior to April 1, 1999, depreciation is calculated using accelerated methods. The Company assesses the impairment of property, plant and equipment subject to depreciation whenever events or changes in circumstances indicate the carrying value may not be recoverable.
Goodwill	Goodwill: Goodwill represents the excess purchase cost over the fair value of net assets of companies acquired in business combinations. Goodwill is considered an indefinite-lived asset. Goodwill is subject to impairment testing in accordance with accounting standards governing such on an annual basis, in the second quarter, or more frequently if an event or change in circumstances indicates that the fair value of a reporting unit has been reduced below its carrying value. Based on the assessments performed during 2017, there was no goodwill impairment.
Aerospace Aftermarket Programs	Aerospace Aftermarket Programs: The Company participates in aftermarket RSPs under which the Company receives an exclusive right to supply designated aftermarket parts over the life of the related aircraft engine program. As consideration, the Company has paid participation fees, which are recorded as long-lived intangible assets. The Company records amortization of the related intangible asset as sales dollars are being earned based on a proportional sales dollar method. Specifically, this method amortizes each asset as a reduction to revenue based on the proportion of sales under a program in a given period to the estimated aggregate sales dollars over the life of that program. This method reflects the pattern in which the economic benefits of the RSPs are realized. The Company also entered into Component Repair Programs ("CRPs") that provide for, among other items, the right to sell certain aftermarket component repair services for CFM56, CF6, CF34 and LM engines directly to other customers as one of a few GE licensed suppliers. In addition, the CRPs extended certain existing contracts under which the Company currently provides these services directly to GE. The Company recorded the consideration for these rights as an intangible asset that is amortized as a reduction to sales over the remaining life of these engine programs based on the estimated sales over the life of such programs. This method reflects the pattern in which the economic benefits of the CRPs are realized. The recoverability of each asset is subject to significant estimates about future revenues related to the program’s aftermarket parts and services. The Company evaluates these intangible assets for recoverability and updates amortization rates on an agreement by agreement basis for the RSPs and on an individual asset program basis for the CRPs. The assets are reviewed for recoverability periodically including whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Annually, the Company evaluates the remaining useful life of these assets to determine whether events and circumstances warrant a revision to the remaining periods of amortization. Management updates revenue projections, which includes comparing actual experience against projected revenue and industry projections. The potential exists that actual revenues will not meet expectations due to a change in market conditions including, for example, the replacement of older engines with new, more fuel-efficient engines or the Company's ability to maintain market share within the Aftermarket business. A shortfall in future revenues may indicate a triggering event requiring a write down or further evaluation of the recoverability of the assets or require the Company to accelerate amortization expense prospectively dependent on the level of the shortfall. The Company has not identified any impairment of these assets.
Intangible Assets	Other Intangible Assets: Other intangible assets consist primarily of the Aerospace Aftermarket Programs, as discussed above, customer relationships, tradenames, patents and proprietary technology. These intangible assets, with the exception of certain tradenames, have finite lives and are amortized over the periods in which they provide benefit. The Company assesses the impairment of long-lived assets, including identifiable intangible assets subject to amortization, whenever significant events or significant changes in circumstances indicate the carrying value may not be recoverable. Tradenames with indefinite lives are subject to impairment testing in accordance with accounting standards governing such on an annual basis, in the second quarter, or more frequently if an event or change in circumstances indicates that the fair value of the asset has been reduced below its carrying value. Based on the assessment performed during 2017, there were no impairments of other intangible assets. See Note 5 of the Consolidated Financial Statements.
Derivatives	Derivatives: Accounting standards related to the accounting for derivative instruments and hedging activities require that all derivative instruments be recorded on the balance sheet at fair value. Foreign currency contracts may qualify as fair value hedges of unrecognized firm commitments, cash flow hedges of recognized assets and liabilities or anticipated transactions, or a hedge of a net investment. Changes in the fair market value of derivatives that qualify as fair value hedges or cash flow hedges are recorded directly to earnings or accumulated other non-owner changes to equity, depending on the designation. Amounts recorded to accumulated other non-owner changes to equity are reclassified to earnings in a manner that matches the earnings impact of the hedged transaction. Any ineffective portion, or amounts related to contracts that are not designated as hedges, are recorded directly to earnings. The Company’s policy for classifying cash flows from derivatives is to report the cash flows consistent with the underlying hedged item.
Foreign currency	Foreign currency: Assets and liabilities of international operations are translated at year-end rates of exchange; revenues and expenses are translated at average rates of exchange. The resulting translation gains or losses are reflected in accumulated other non-owner changes to equity within stockholders’ equity. Net foreign currency transaction gains of $756 , $1,873 and $505 in 2017 , 2016 and 2015 , respectively, were included in other expense (income), net in the Consolidated Statements of Income.
Research and Development	Research and Development: Costs are incurred in connection with efforts aimed at discovering and implementing new knowledge that is critical to developing new products, processes or services, significantly improving existing products or services, and developing new applications for existing products and services. Research and development expenses for the creation of new and improved products and services were $14,765 , $12,913 and $12,688 , for the years 2017 , 2016 and 2015 , respectively, and are included in selling and administrative expense.
Pension and Other Postretirement Benefits	Pension and Other Postretirement Benefits: The Company accounts for its defined benefit pension plans and other postretirement plans by recognizing the overfunded or underfunded status of the plans, calculated as the difference between plan assets and the projected benefit obligation related to each plan, as an asset or liability on the Consolidated Balance Sheets. Benefit costs associated with the plans primarily include current service costs, interest costs and the amortization of actuarial losses, partially offset by expected returns on plan assets, which are determined based upon actuarial valuations. Settlement and curtailment losses (gains) may also impact benefit costs. The Company regularly reviews actuarial assumptions, including discount rates and the expected return on plan assets, which are updated at the measurement date, December 31st. The impact of differences between actual results and the assumptions are generally accumulated within Other Comprehensive Income and amortized over future periods, which will affect benefit costs recognized in such periods. See Note 11 to the Consolidated Financial Statements.
Stock-Based Compensation	Stock-Based Compensation: Stock-based employee compensation plans are accounted for based on their fair value on the grant date and the related cost is recognized in the Consolidated Statements of Income in accordance with accounting standards related to share-based payments. The fair values of stock options are estimated using the Black-Scholes option-pricing model based on certain assumptions. The fair values of service and performance based share awards are estimated based on the fair market value of the Company’s stock price on the grant date. The fair values of market based performance share awards are estimated using the Monte Carlo valuation method. See Note 12 of the Consolidated Financial Statements. The Company accounts for the cost of all share-based payments, including stock options, by measuring the payments at fair value on the grant date and recognizing the cost in the results of operations. The fair values of stock options are estimated using the Black-Scholes option-pricing model based on certain assumptions. The fair values of service and performance based stock awards are estimated based on the fair market value of the Company’s stock price on the grant date. The fair value of market based performance share awards are estimated using the Monte Carlo valuation method. Estimated forfeiture rates are applied to outstanding awards. Refer to Note 16 for a description of the Company’s stock-based compensation plans and their general terms. As of December 31, 2017 , incentives have been awarded in the form of performance share awards and restricted stock unit awards (collectively, “Rights”) and stock options. The Company has elected to use the straight-line method to recognize compensation costs. Stock options and awards typically vest over a period ranging from six months to five years . The maximum term of stock option awards is 10 years. Upon exercise of a stock option or upon vesting of Rights, shares may be issued from treasury shares held by the Company or from authorized shares. In March 2016, the FASB amended its guidance related to the accounting for certain aspects of share-based payments to employees. The amended guidance requires that all tax effects related to share-based payments are recorded at settlement (or expiration) through the income statement, rather than through equity. Cash flows related to excess tax benefits will no longer be separately classified as a financing activity apart from other income tax cash flows. The amended guidance also allows for an employer to repurchase additional employee shares for tax withholding purposes without requiring liability accounting and clarifies that all cash payments made to tax authorities on an employee’s behalf for withheld shares should be presented as a financing activity on the Consolidated Statements of Cash Flows. The guidance also allows for a policy election to account for forfeitures as they occur, rather than accounting for them on an estimated basis. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. Early adoption is permitted.
Income Taxes	Income Taxes: Deferred tax assets and liabilities are recognized for future tax effects attributable to temporary differences, operating loss carryforwards and tax credits. The measurement of deferred tax assets and liabilities is determined using tax rates from enacted tax law of the period in which the temporary differences, operating loss carryforwards and tax credits are expected to be realized. The effect of the change in income tax rates is recognized in the period of the enactment date. The guidance related to accounting for income taxes requires that deferred tax assets be reduced by a valuation allowance if, based on all available evidence, it is more likely than not that the deferred tax asset will not be realized. The Company is exposed to certain tax contingencies in the ordinary course of business and records those tax liabilities in accordance with the guidance for accounting for uncertain tax positions. See Note 13 of the Consolidated Financial Statements.
Recently Adopted / Issued Accounting Standards	Recent Accounting Standards The Financial Accounting Standards Board ("FASB") establishes changes to accounting principles under U.S. GAAP through the use of Accounting Standards Updates ("ASUs") to the FASB's Accounting Standards Codification. The Company evaluates the applicability and potential impacts of recent ASUs. Recently Adopted Accounting Standards In April 2015, the FASB amended its guidance related to the presentation of debt issuance costs. The amended guidance specifies that debt issuance costs related to notes shall be reported in the balance sheet as a direct deduction from the face amount of that note and that amortization of debt issuance costs shall be reported as interest expense. The amended guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 and should be applied retrospectively. The Company adopted the guidance during the first quarter of 2016 and it did not have a material impact on its Consolidated Financial Statements. In July 2015, the FASB amended its guidance related to the measurement of inventory. The amended guidance requires inventory to be measured at the lower of cost and net realizable value and thereby simplifies the prior guidance of measuring inventory at the lower of cost or market. The amended guidance is effective prospectively for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. The Company adopted the guidance during the first quarter of 2017 and it did not have a material impact on its Consolidated Financial Statements. In November 2015, the FASB amended its guidance related to the balance sheet classification of deferred income taxes. The amended guidance removes the requirement to separate and classify deferred income tax liabilities and assets into current and non-current amounts and requires an entity to now classify all deferred tax liabilities and assets as non-current. The amended guidance can be adopted either on a prospective or retrospective basis and is effective for interim and annual periods beginning after December 15, 2016. Early adoption is permitted. The provisions of the amended guidance were adopted on a prospective basis during the first quarter of 2016. The provisions resulted in the classification of $26,639 and $1,290 of current deferred income tax assets and liabilities, respectively, into non-current deferred income tax assets and liabilities on the Consolidated Balance Sheet as of December 31, 2016. In March 2016, the FASB amended its guidance related to the accounting for certain aspects of share-based payments to employees. The amended guidance requires that all tax effects related to share-based payments are recorded at settlement (or expiration) through the income statement, rather than through equity. Cash flows related to excess tax benefits will no longer be separately classified as a financing activity apart from other income tax cash flows. The amended guidance also allows for an employer to repurchase additional employee shares for tax withholding purposes without requiring liability accounting and clarifies that all cash payments made to tax authorities on an employee’s behalf for withheld shares should be presented as a financing activity on the Consolidated Statements of Cash Flows. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. Early adoption was permitted, and the Company elected to early adopt in the third quarter of 2016. See Note 12 of the Consolidated Financial Statements for additional details related to the Company's adoption of this amended guidance. Recently Issued Accounting Standards In May 2014, the Financial Accounting Standards Board ("FASB") amended its guidance related to revenue recognition. The amended guidance establishes a single comprehensive model for companies to use in accounting for revenue arising from contracts with customers and will supersede most of the existing revenue recognition guidance, including industry-specific guidance. The amended guidance clarifies that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the amended guidance, an entity will (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the contract’s performance obligations; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The amended guidance applies to all contracts with customers except those that are within the scope of other topics in the FASB Accounting Standards Codification. The amended guidance was initially effective for annual reporting periods (including interim periods within those periods) beginning after December 15, 2016 for public companies. On July 9, 2015, the FASB approved a deferral of the effective date by one year to December 15, 2017 for annual reporting periods beginning after that date. The FASB also permitted early adoption of the standard, but not before the original effective date of December 15, 2016. Entities have the option of using either a full retrospective or modified retrospective approach to the amended guidance. The Company will adopt the amended guidance using the modified retrospective approach on January 1, 2018 at which time it becomes effective for the Company. In 2015, management developed a project plan and established a cross-functional team to implement the amended guidance. We have completed the review of our customer contracts and have evaluated the impact of the amended guidance on each of our primary revenue streams. While we are finalizing our overall assessment under the amended guidance, we believe that the most significant impact relates to the timing of revenue recognition, presentation and disclosures. We expect that the majority of our businesses will continue to recognize revenue on a "point-in-time basis". We also expect, however, that a portion of our businesses with customized products or customer contracts in which we perform work on a customer-owned asset will require the use of an "over time" recognition model as certain of our contracts meet certain of the criteria established in the amended guidance. We will utilize the cost-to-cost input method to measure progress towards completion for contracts on an over time revenue recognition model. On January 1, 2018, the Company will recognize the cumulative effect of initially applying the amended guidance as an increase of approximately $4,000 to the opening balance of retained earnings, attributed primarily to the over time recognition of approximately $15,000 of net sales. We do not expect that the ongoing impact to net sales and net income will be material to the Consolidated Statements of Income, however the future impact of the amended guidance is dependent on the mix and nature of specific customer contracts. Under the existing guidance, the Company recognizes customer advances when payment is received. Adoption of the amended guidance will result in the recognition of additional customer advances for which the Company has received an unconditional right to payment. Since the related performance obligations have not been satisfied, however, the Company will recognize these customer advances as trade receivables, with a corresponding contract liability of equal amount. We continue to identify appropriate changes to our business processes, systems and controls to support recognition and disclosure requirements under the new standard. We are continuing to implement design changes to such business processes, controls and systems to ensure that such changes are effective. In February 2016, the FASB amended its guidance related to lease accounting. The amended guidance requires lessees to recognize a majority of their leases on the balance sheet as a right-to-use asset. Lessees are permitted to make an accounting policy election to not recognize an asset and liability for leases with a term of twelve months or less. Lease expense will be recorded in a manner similar to current accounting. The guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted. The Company is currently evaluating the guidance to determine the impact it will have on its Consolidated Financial Statements. The Company anticipates the amended guidance will have a material impact on its assets and liabilities due to the addition of right-of-use assets and lease liabilities to the balance sheet; however, it does not expect the amended guidance to have a material impact on its cash flows or results of operations. In August 2016, the FASB amended its guidance related to the Statement of Cash Flows. The amended guidance clarifies how certain cash receipts and cash payments should be presented on the statement of cash flows, with focus on eight specific areas in which cash flows have, in practice, been presented inconsistently. The guidance is effective for annual periods beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted. The Company does not expect the amended guidance to have a material impact on its cash flows. In January 2017, the FASB amended its guidance related to goodwill impairment testing. The amended guidance simplifies the subsequent measurement of goodwill, eliminating Step 2 from the goodwill impairment test. Under the amended guidance, companies should perform their annual goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. Companies would recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value, assuming the loss recognized does not exceed the total amount of goodwill for the reporting unit. The amended guidance is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted. The adoption of this amended guidance is not expected to have a material impact on the Company's Consolidated Financial Statements. In March 2017, the FASB amended its guidance related to the presentation of pension costs. The amended guidance requires the bifurcation of net periodic benefit cost for pension and other postretirement plans. The service cost component of expense will be presented with other employee compensation costs in operating income, consistent with the current guidance. The other components of expense, however, will be reported separately outside of operating income. The guidance is effective for annual periods beginning after December 15, 2017 and interim periods within that reporting period. Early adoption is permitted. The Company is currently evaluating the amended guidance to determine the impact it will have on its Consolidated Financial Statements. The Company does not expect that the adoption of this amended guidance will have a material impact on the Company's Consolidated Financial Statements on an ongoing basis. The Company's retrospective adoption, though, will have an impact on certain classifications in the 2017 Consolidated Statements of Income, primarily due to the pre-tax pension curtailment gain of $7,217 that was recorded in operating income during 2017. See Note 11 of the Consolidated Financial Statements. In August 2017, the FASB amended its guidance related to hedge accounting. The amended guidance makes more financial and nonfinancial hedging strategies eligible for hedge accounting, amends presentation and disclosure requirements and changes the assessment of effectiveness. The guidance also more closely aligns hedge accounting with management strategies, simplifies application and increases the transparency of hedging. The amended guidance is effective January 1, 2019, with early adoption permitted in any interim period. The Company is currently evaluating the impact that the guidance may have on its Consolidated Financial Statements. In February 2018, the FASB issued guidance related to the impacts of the tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Act”). The guidance permits the reclassification of certain income tax effects of the Act from Other Comprehensive Income to Retained Earnings (stranded tax effects). The guidance also requires certain new disclosures. The guidance is effective for annual periods beginning after December 15, 2018, and interim periods within that reporting period. Early adoption is permitted. Entities may adopt the guidance using one of two transition methods; retrospective to each period (or periods) in which the income tax effects of the Act related to the items remaining in Other Comprehensive Income are recognized or at the beginning of the period of adoption. The Company is currently evaluating the impact that the guidance may have on its Consolidated Financial Statements.

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2017
Inventory Disclosure [Abstract]
Schedule of Inventory, Current	Inventories at December 31 consisted of: 2017 2016 Finished goods $ 79,649 $ 71,100 Work-in-process 97,276 98,246 Raw materials and supplies 65,037 58,413 $ 241,962 $ 227,759

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment at December 31 consisted of: 2017 2016 Land $ 21,723 $ 19,952 Buildings 182,226 169,695 Machinery and equipment 631,392 572,540 835,341 762,187 Less accumulated depreciation (476,043 ) (427,698 ) $ 359,298 $ 334,489

Goodwill and Other Intangible32

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The following table sets forth the change in the carrying amount of goodwill for each reportable segment and the Company: Industrial Aerospace Total Company January 1, 2016 $ 557,206 $ 30,786 $ 587,992 Acquisition-related 73,688 — 73,688 Foreign currency translation (28,244 ) — (28,244 ) December 31, 2016 602,650 30,786 633,436 Acquisition-related 3,330 — 3,330 Foreign currency translation 53,457 — 53,457 December 31, 2017 $ 659,437 $ 30,786 $ 690,223
Schedule of Intangible Assets	Other intangible assets at December 31 consisted of: 2017 2016 Range of Life-Years Gross Amount Accumulated Amortization Gross Amount Accumulated Amortization Amortized intangible assets: Revenue Sharing Programs Up to 30 $ 293,700 $ (108,075 ) $ 293,700 $ (95,701 ) Component Repair Programs Up to 30 111,839 (16,508 ) 111,839 (10,497 ) Customer lists/relationships 10-16 215,966 (65,385 ) 215,266 (53,198 ) Patents and technology 4-14 87,052 (48,083 ) 84,052 (37,897 ) Trademarks/trade names 10-30 11,950 (10,349 ) 11,950 (9,967 ) Other Up to 15 20,551 (16,414 ) 20,551 (16,338 ) 741,058 (264,814 ) 737,358 (223,598 ) Unamortized intangible asset: Trade names 42,770 — 42,770 — Foreign currency translation (11,972 ) — (34,272 ) — Other intangible assets $ 771,856 $ (264,814 ) $ 745,856 $ (223,598 )

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	12 Months Ended
	Dec. 31, 2017
Accrued Liabilities [Abstract]
Schedule of Accrued Liabilities	Accrued liabilities at December 31 consisted of: 2017 2016 Payroll and other compensation $ 53,857 $ 37,560 Deferred revenue and customer advances 40,472 34,812 Pension and other postretirement benefits 8,294 8,261 Accrued income taxes 26,340 26,477 Other 52,278 49,857 $ 181,241 $ 156,967

Debt and Commitments (Tables)

Debt and Commitments (Tables)	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Schedule of Debt	Long-term debt and notes and overdrafts payable at December 31 consisted of: 2017 2016 Carrying Amount Fair Value Carrying Amount Fair Value Revolving credit agreement $ 421,500 $ 424,818 $ 363,300 $ 364,775 3.97% Senior Notes 100,000 101,348 100,000 101,598 Borrowings under lines of credit and overdrafts 5,669 5,669 30,825 30,825 Capital leases 4,541 4,964 5,413 5,902 Other foreign bank borrowings 886 897 1,416 1,428 532,596 537,696 500,954 504,528 Less current maturities (6,999 ) (32,892 ) Long-term debt $ 525,597 $ 468,062

Business Reorganization (Tables

Business Reorganization (Tables)	12 Months Ended
	Dec. 31, 2017
Restructuring and Related Activities [Abstract]
Schedule of Liability for 2017 employee termination actions	The following table sets forth the change in the liability for the 2017 employee termination actions: January 1, 2017 $ — Employee severance costs 3,796 Payments (3,099 ) Foreign currency translation (48 ) December 31, 2017 $ 649

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table sets forth the fair value amounts of derivative instruments held by the Company as of December 31. 2017 2016 Asset Derivatives Liability Derivatives Asset Derivatives Liability Derivatives Derivatives designated as hedging instruments: Interest rate contracts $ 654 $ — $ — $ (78 ) Foreign exchange contracts — (379 ) — (177 ) 654 (379 ) — (255 ) Derivatives not designated as hedging instruments: Foreign exchange contracts 58 (29 ) 397 (1,499 ) Total derivatives $ 712 $ (408 ) $ 397 $ (1,754 )
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The following table sets forth the (loss) gain recorded in accumulated other comprehensive income (loss), net of tax, for the years ended December 31, 2017 and 2016 for derivatives held by the Company and designated as hedging instruments. 2017 2016 Cash flow hedges: Interest rate contracts $ 460 $ 174 Foreign exchange contracts (161 ) (516 ) $ 299 $ (342 )
(Gain) Loss Recorded in Other (Income) Expense, Net in Consolidated Statements of Income	The following table sets forth the net (loss) gains recorded in other expense (income), net in the consolidated statements of income for the years ended December 31, 2017 and 2016 for non-designated derivatives held by the Company. Such amounts were substantially offset by the net (gain) loss recorded on the underlying hedged asset or liability, also recorded in other expense (income), net. 2017 2016 Foreign exchange contracts $ (16,813 ) $ 2,297

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following table provides the assets and liabilities reported at fair value and measured on a recurring basis as of December 31, 2017 and 2016 : Fair Value Measurements Using Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2017 Asset derivatives $ 712 $ — $ 712 $ — Liability derivatives (408 ) — (408 ) — Bank acceptances 16,092 — 16,092 — Rabbi trust assets 2,554 2,554 — — $ 18,950 $ 2,554 $ 16,396 $ — December 31, 2016 Asset derivatives $ 397 $ — $ 397 $ — Liability derivatives (1,754 ) — (1,754 ) — Bank acceptances 9,690 — 9,690 — Rabbi trust assets 2,216 2,216 — — $ 10,549 $ 2,216 $ 8,333 $ —

Pension and Other Postretirem38

Pension and Other Postretirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
Schedule of Net Funded Status	The accompanying balance sheets reflect the funded status of the Company’s defined benefit pension plans at December 31, 2017 and 2016 , respectively. Reconciliations of the obligations and funded status of the plans follow: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Benefit obligation, January 1 $ 389,613 $ 104,339 $ 493,952 $ 385,629 $ 75,406 $ 461,035 Service cost 3,931 2,124 6,055 3,892 1,503 5,395 Interest cost 17,151 1,668 18,819 17,523 1,971 19,494 Amendments 1,233 27 1,260 2,405 (174 ) 2,231 Actuarial loss (gain) 28,350 (4,397 ) 23,953 6,661 10,814 17,475 Benefits paid (24,909 ) (4,240 ) (29,149 ) (26,497 ) (4,691 ) (31,188 ) Transfers in — 2,743 2,743 — 25,968 25,968 Plan curtailments — (7,030 ) (7,030 ) — — — Plan settlements — (21,074 ) (21,074 ) — — — Participant contributions — 1,355 1,355 — 1,444 1,444 Foreign exchange rate changes — 7,226 7,226 — (7,902 ) (7,902 ) Benefit obligation, December 31 415,369 82,741 498,110 389,613 104,339 493,952 Fair value of plan assets, January 1 331,260 85,652 416,912 326,829 68,553 395,382 Actual return on plan assets 56,131 6,150 62,281 13,051 7,276 20,327 Company contributions 12,896 2,027 14,923 17,877 2,224 20,101 Participant contributions — 1,355 1,355 — 1,444 1,444 Benefits paid (24,909 ) (4,240 ) (29,149 ) (26,497 ) (4,691 ) (31,188 ) Plan settlements — (20,857 ) (20,857 ) — — — Transfers in — 2,743 2,743 — 18,320 18,320 Foreign exchange rate changes — 6,230 6,230 — (7,474 ) (7,474 ) Fair value of plan assets, December 31 375,378 79,060 454,438 331,260 85,652 416,912 Underfunded status, December 31 $ (39,991 ) $ (3,681 ) $ (43,672 ) $ (58,353 ) $ (18,687 ) $ (77,040 ) The accompanying balance sheets reflect the underfunded status of the Company’s other postretirement benefit plans at December 31, 2017 and 2016 . Reconciliations of the obligations and underfunded status of the plans follow: 2017 2016 Benefit obligation, January 1 $ 36,853 $ 41,706 Service cost 83 122 Interest cost 1,561 1,766 Actuarial loss (gain) 3,806 (3,495 ) Benefits paid (7,251 ) (5,621 ) Participant contributions 2,209 2,281 Foreign exchange rate changes 309 94 Benefit obligation, December 31 37,570 36,853 Fair value of plan assets, January 1 — — Company contributions 5,042 3,340 Participant contributions 2,209 2,281 Benefits paid (7,251 ) (5,621 ) Fair value of plan assets, December 31 — — Underfunded status, December 31 $ 37,570 $ 36,853
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets	Projected benefit obligations related to pension plans with benefit obligations in excess of plan assets follow: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Projected benefit obligation $ 311,320 $ 40,931 $ 352,251 $ 389,613 $ 61,060 $ 450,673 Fair value of plan assets 267,087 26,205 293,292 331,260 39,356 370,616
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets	Information related to pension plans with accumulated benefit obligations in excess of plan assets follows: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Projected benefit obligation $ 40,572 $ 40,931 $ 81,503 $ 389,613 $ 61,014 $ 450,627 Accumulated benefit obligation 40,090 40,877 80,967 378,431 59,568 437,999 Fair value of plan assets 4,797 26,205 31,002 331,260 39,356 370,616
Schedule of Amounts Recognized in Balance Sheet	Amounts related to other postretirement benefits recognized in the accompanying balance sheets consist of: 2017 2016 Accrued liabilities $ 5,064 $ 5,081 Accrued retirement benefits 32,506 31,772 Accumulated other non-owner changes to equity, net (5,838 ) (3,582 ) Amounts related to pensions recognized in the accompanying balance sheets consist of: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Other assets $ 4,242 $ 11,045 $ 15,287 $ — $ 3,017 $ 3,017 Accrued liabilities 2,823 407 3,230 2,813 367 3,180 Accrued retirement benefits 41,410 14,319 55,729 55,540 21,337 76,877 Accumulated other non-owner changes to equity, net (84,990 ) (13,016 ) (98,006 ) (91,530 ) (19,458 ) (110,988 )
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	Amounts related to other postretirement benefits recognized in accumulated other non-owner changes to equity, net of tax, at December 31, 2017 and 2016 consist of: 2017 2016 Net actuarial loss $ (5,746 ) $ (3,532 ) Prior service loss (92 ) (50 ) $ (5,838 ) $ (3,582 ) Amounts related to pensions recognized in accumulated other non-owner changes to equity, net of tax, at December 31, 2017 and 2016 , respectively, consist of: 2017 2016 U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial loss $ (82,736 ) $ (13,237 ) $ (95,973 ) $ (89,772 ) $ (19,822 ) $ (109,594 ) Prior service costs (2,254 ) 221 (2,033 ) (1,758 ) 364 (1,394 ) $ (84,990 ) $ (13,016 ) $ (98,006 ) $ (91,530 ) $ (19,458 ) $ (110,988 ) The sources of changes in accumulated other non-owner changes to equity, net, during 2017 were: Pension Other Postretirement Benefits Prior service cost $ (800 ) $ — Net (loss) gain 7,787 (2,392 ) Amortization of prior service (credits) costs 117 (43 ) Amortization of actuarial loss 7,140 170 Foreign exchange rate changes (1,262 ) 9 $ 12,982 $ (2,256 )
Schedule of Assumptions Used, Benefit Obligation	Weighted-average assumptions used to determine benefit obligations as of December 31, are: 2017 2016 U.S. plans: Discount rate 3.90 % 4.50 % Increase in compensation 2.56 % 2.56 % Non-U.S. plans: Discount rate 1.90 % 1.60 % Increase in compensation 2.17 % 2.29 %
Schedule of Allocation of Plan Assets	The fair values of the Company’s pension plan assets at December 31, 2017 and 2016 , by asset category are as follows: Fair Value Measurements Using Asset Category Total Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2017 Cash and short-term investments $ 10,731 $ 10,731 $ — $ — Equity securities: U.S. large-cap 46,786 — 46,786 — U.S. mid-cap 15,576 15,576 — — U.S. small-cap 16,157 16,157 — — International equities 159,803 — 159,803 — Global equity 51,945 51,945 — — Fixed income securities: U.S. bond funds 109,033 — 109,033 — International bonds 41,742 — 41,742 — Other 2,665 — — 2,665 $ 454,438 $ 94,409 $ 357,364 $ 2,665 December 31, 2016 Cash and short-term investments 3,207 3,207 — — Equity securities: U.S. large-cap 39,162 — 39,162 — U.S. mid-cap 12,724 12,724 — — U.S. small-cap 19,551 19,551 — — International equities 135,514 — 135,514 — Global equity 47,445 47,445 — — Fixed income securities: U.S. bond funds 103,399 — 103,399 — International bonds 53,783 — 53,783 — Other 2,127 — — 2,127 $ 416,912 $ 82,927 $ 331,858 $ 2,127
Schedule of Expected Benefit Payments	The following are the estimated future net benefit payments, which include future service, over the next 10 years: Pensions Other Postretirement Benefits 2018 $ 29,261 $ 3,653 2019 29,243 3,485 2020 29,086 3,204 2021 29,205 3,014 2022 29,378 2,848 Years 2023-2027 144,074 11,722 Total $ 290,247 $ 27,926
Schedule of Net Benefit Costs	Pension and other postretirement benefit costs consist of the following: Pensions Other Postretirement Benefits 2017 2016 2015 2017 2016 2015 Service cost $ 6,055 $ 5,395 $ 5,508 $ 83 $ 122 $ 145 Interest cost 18,819 19,494 20,019 1,561 1,766 1,836 Expected return on plan assets (28,082 ) (30,302 ) (32,404 ) — — — Amortization of prior service cost (credit) 446 210 305 (68 ) (373 ) (564 ) Recognized losses 10,557 10,791 15,004 276 535 1,011 Curtailment gain (7,217 ) — — — — — Settlement (gain) loss (119 ) — 9,939 — — — Net periodic benefit cost $ 459 $ 5,588 $ 18,371 $ 1,852 $ 2,050 $ 2,428
Schedule of Assumptions Used, Net Benefit Expense	Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31, are: 2017 2016 2015 U.S. plans: Discount rate 4.50 % 4.65 % 4.25 % Long-term rate of return 7.75 % 8.25 % 8.25 % Increase in compensation 2.56 % 3.71 % 3.71 % Non-U.S. plans: Discount rate 1.60 % 2.80 % 2.74 % Long-term rate of return 3.59 % 4.73 % 5.00 % Increase in compensation 2.29 % 2.71 % 2.72 %
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates	A one percentage point change in the assumed health care cost trend rate would have the following effects: One Percentage Point Increase One Percentage Point Decrease Effect on postretirement benefit obligation $ 261 $ (242 ) Effect on postretirement benefit cost 11 (10 )
Schedule of Multiemployer Plans	Contributions related to the individually insignificant multi-employer plans, as disclosure is required pursuant to the applicable accounting standards, are as follows: Contributions by the Company Pension Fund: 2017 2016 2015 Swedish Pension Plan 739 $ 673 $ 343 Total Contributions $ 739 $ 673 $ 343

Stock-based Compensation (Table

Stock-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Share-based Compensation [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	The following table summarizes information about the Company’s stock option awards during 2017 : Number of Shares Weighted-Average Exercise Price Outstanding, January 1, 2017 589,160 $ 28.67 Granted 131,416 47.80 Exercised (84,393 ) 23.28 Forfeited (17,403 ) 39.82 Outstanding, December 31, 2017 618,780 33.15
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range	The following table summarizes information about stock options outstanding at December 31, 2017 : Options Outstanding Options Exercisable Range of Exercise Prices Number of Shares Average Remaining Life (Years) Average Exercise Price Number of Shares Average Exercise Price $11.45 to $15.83 67,130 1.5 $ 13.43 67,130 $ 13.43 $20.69 to $26.32 77,955 4.2 23.56 77,955 23.56 $26.38 to $30.71 146,828 7.5 30.26 58,173 29.58 $34.92 to $37.13 195,005 6.9 36.40 142,844 36.59 $38.93 to $63.38 131,862 9.0 47.28 5,750 38.96
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The fair value of each stock option grant on the date of grant was estimated using the Black-Scholes option-pricing model based on the following weighted average assumptions: 2017 2016 2015 Risk-free interest rate 1.90 % 1.20 % 1.58 % Expected life (years) 5.3 5.3 5.3 Expected volatility 26.1 % 29.1 % 31.1 % Expected dividend yield 1.82 % 1.94 % 2.06 %
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable	The following table summarizes information about stock options outstanding that are expected to vest and stock options outstanding that are exercisable at December 31, 2017 : Options Outstanding, Expected to Vest Options Outstanding, Exercisable Shares Weighted- Average Exercise Price Aggregate Intrinsic Value Weighted- Average Remaining Term (Years) Shares Weighted- Average Exercise Price Aggregate Intrinsic Value Weighted- Average Remaining Term (Years) 598,986 $ 33.15 $ 18,041 6.58 351,852 $ 28.16 $ 12,352 5.16
Schedule of Share-based Compensation, Restricted Stock Units, Activity	The following table summarizes information about the Company’s Rights during 2017 : Service Based Rights Service and Performance Based Rights Service and Market Based Rights Number of Units Weighted-Average Grant Date Fair Value Number of Units Weighted-Average Grant Date Fair Value Number of Units Weighted-Average Grant Date Fair Value Outstanding, January 1, 2017 347,304 $ 31.86 172,042 $ 34.74 116,746 $ 52.24 Granted 122,696 50.30 43,506 47.69 43,506 74.20 Forfeited (14,573 ) 37.77 (4,660 ) 57.83 (4,363 ) 43.39 Additional Earned — — 18,370 37.00 3,946 50.45 Issued (144,903 ) 57.80 (73,364 ) 37.00 (31,443 ) 50.45 Outstanding, December 31, 2017 310,524 155,894 128,392

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of Effective Income Tax Rate Reconciliation	A reconciliation of the U.S. federal statutory income tax rate to the consolidated effective income tax rate from continuing operations follows: 2017 2016 2015 U.S. federal statutory income tax rate 35.0 % 35.0 % 35.0 % State taxes (net of federal benefit) 0.1 0.4 0.2 Transition Tax 45.0 — — U.S. Corporate Tax Rate change 2.1 — — Indefinite Reinvestment Assertion 3.5 — — Foreign operations taxed at different rates (11.5 ) (10.9 ) (12.9 ) Foreign losses without tax benefit 1.5 0.7 1.1 Repatriation from current year foreign earnings — 1.6 4.3 Tax withholding refund — — (1.9 ) Tax Holidays (0.8 ) (1.2 ) (3.2 ) Stock awards excess tax benefit (1.2 ) (1.2 ) — Swiss Legal Entity Reduction (3.4 ) — — Audit Settlements (2.7 ) — — Other 2.0 1.3 0.6 Consolidated effective income tax rate 69.6 % 25.7 % 23.2 %
Schedule of Income before Income Tax, Domestic and Foreign and Components of Income Tax Expense	The components of Income from continuing operations before income taxes and Income taxes follow: 2017 2016 2015 Income from continuing operations before income taxes: U.S. $ 3,082 $ 34,129 $ 11,525 International 192,617 148,492 146,421 Income from continuing operations before income taxes $ 195,699 $ 182,621 $ 157,946 Income tax provision: Current: U.S. – federal $ 77,799 $ 7,215 $ (210 ) U.S. – state 1,762 755 2,019 International 48,032 41,516 32,217 127,593 49,486 34,026 Deferred: U.S. – federal $ 9,596 $ 6,091 $ 7,670 U.S. – state 819 1,060 (1,137 ) International (1,724 ) (9,617 ) (3,993 ) 8,691 (2,466 ) 2,540 Income taxes $ 136,284 $ 47,020 $ 36,566
Schedule of Deferred Tax Assets and Liabilities	Deferred income tax assets and liabilities at December 31 consist of the tax effects of temporary differences related to the following: 2017 2016 Deferred tax assets: Pension $ 13,255 $ 27,410 Tax loss carryforwards 16,078 16,686 Inventory valuation 10,568 15,518 Other postretirement/postemployment costs 9,440 14,071 Accrued Compensation 5,743 10,121 Other 4,018 6,489 Valuation allowance (10,223 ) (14,957 ) Total deferred tax assets 48,879 75,338 Deferred tax liabilities: Depreciation and amortization (82,422 ) (89,198 ) Goodwill (9,440 ) (14,871 ) Other (18,361 ) (12,282 ) Total deferred tax liabilities (110,223 ) (116,351 ) Net deferred tax liabilities $ (61,344 ) $ (41,013 ) In the first quarter of 2016, the Company prospectively adopted the amended guidance related to the balance sheet classification of deferred income taxes. The amended guidance removed the requirement to separate and classify deferred income tax liabilities and assets into current and non-current amounts and required an entity to now classify all deferred tax liabilities and assets as non-current. The provisions of the amended guidance were adopted on a prospective basis during the first quarter of 2016. Amounts related to deferred taxes in the balance sheets as of December 31, 2017 and 2016 are presented as follows: 2017 2016 Non-current deferred tax assets $ 12,161 $ 25,433 Non-current deferred tax liabilities (73,505 ) (66,446 ) Net deferred tax liabilities $ (61,344 ) $ (41,013 )
Summary of Income Tax Contingencies	A reconciliation of the unrecognized tax benefits for 2017 , 2016 and 2015 follows: 2017 2016 2015 Balance at January 1 $ 13,320 $ 10,634 $ 8,560 Increase (decrease) in unrecognized tax benefits due to: Tax positions taken during prior periods 1,141 — 1,691 Tax positions taken during the current period 778 117 — Acquisition — 2,569 598 Settlements (4,162 ) — — Lapse of the applicable statute of limitations (1,868 ) — (215 ) Balance at December 31 $ 9,209 $ 13,320 $ 10,634

Weighted Average Shares Outst41

Weighted Average Shares Outstanding (Tables)	12 Months Ended
	Dec. 31, 2017
Weighted Average Shares Outstanding [Abstract]
Schedule of Weighted Average Number of Shares	A reconciliation of the weighted-average number of common shares outstanding used in the calculation of basic and diluted earnings per share follows: Weighted-Average Common Shares Outstanding 2017 2016 2015 Basic 54,073,407 54,191,013 55,028,063 Dilutive effect of: Stock options 258,052 166,986 206,778 Performance share awards 273,839 273,314 278,378 Diluted 54,605,298 54,631,313 55,513,219

Changes in Accumulated Other 42

Changes in Accumulated Other Comprehensive Income by Component (Tables)	12 Months Ended
	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Amounts in Accumulated Other Comprehensive Income (Loss)	The following tables set forth the changes in accumulated other comprehensive income by component for the years ended December 31, 2017 and December 31, 2016 : Gains and Losses on Cash Flow Hedges Pension and Other Postretirement Benefit Items Foreign Currency Items Total January 1, 2017 $ (227 ) $ (114,570 ) $ (86,031 ) $ (200,828 ) Other comprehensive (loss) income before reclassifications to consolidated statements of income (231 ) 3,342 83,404 86,515 Amounts reclassified from accumulated other comprehensive income to the consolidated statements of income 530 7,384 — 7,914 Net current-period other comprehensive income 299 10,726 83,404 94,429 December 31, 2017 $ 72 $ (103,844 ) $ (2,627 ) $ (106,399 ) Gains and Losses on Cash Flow Hedges Pension and Other Postretirement Benefit Items Foreign Currency Items Total January 1, 2016 $ 115 $ (105,703 ) $ (37,664 ) $ (143,252 ) Other comprehensive loss before reclassifications to consolidated statements of income (739 ) (16,137 ) (48,367 ) (65,243 ) Amounts reclassified from accumulated other comprehensive income to the consolidated statements of income 397 7,270 — 7,667 Net current-period other comprehensive loss (342 ) (8,867 ) (48,367 ) (57,576 ) December 31, 2016 $ (227 ) $ (114,570 ) $ (86,031 ) $ (200,828 )
Schedule of Amounts Reclassified Out of Accumulated Other Comprehensive Income to the Consolidated Statements of Income	The following table sets forth the reclassifications out of accumulated other comprehensive income by component for the years ended December 31, 2017 and December 31, 2016 : Details about Accumulated Other Comprehensive Income Components Amount Reclassified from Accumulated Other Comprehensive Income Affected Line Item in the Consolidated Statements of Income 2017 2016 Gains and losses on cash flow hedges Interest rate contracts $ (545 ) $ (557 ) Interest expense Foreign exchange contracts (242 ) (61 ) Net sales (787 ) (618 ) Total before tax 257 221 Tax benefit (530 ) (397 ) Net of tax Pension and other postretirement benefit items Amortization of prior-service (cost) credits, net $ (378 ) $ 163 (A) Amortization of actuarial losses (10,833 ) (11,326 ) (A) Curtailment gain 187 — (A) Settlement loss (142 ) — (A) (11,166 ) (11,163 ) Total before tax 3,782 3,893 Tax benefit (7,384 ) (7,270 ) Net of tax Total reclassifications in the period $ (7,914 ) $ (7,667 ) (A) These accumulated other comprehensive income components are included within the computation of net periodic Pension and Other Postretirement Benefits cost. See Note 11.

Information on Business Segme43

Information on Business Segments (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	The following table (in millions) sets forth summarized financial information by reportable business segment: Industrial Aerospace Other Total Company Sales 2017 $ 973.9 $ 462.6 $ — $ 1,436.5 2016 824.2 406.5 — 1,230.8 2015 782.3 411.7 — 1,194.0 Operating profit 2017 $ 127.1 $ 83.2 $ — $ 210.3 2016 129.7 62.5 — 192.2 2015 103.0 65.4 — 168.4 Assets 2017 $ 1,505.4 $ 667.1 $ 193.3 $ 2,365.7 2016 1,356.1 647.8 133.7 2,137.5 2015 1,241.2 654.1 166.5 2,061.9 Depreciation and amortization 2017 $ 54.8 $ 33.6 $ 1.7 $ 90.2 2016 49.5 30.0 0.7 80.2 2015 46.0 30.8 1.3 78.2 Capital expenditures 2017 $ 31.0 $ 27.5 $ 0.2 $ 58.7 2016 25.9 21.1 0.5 47.6 2015 28.7 17.2 0.1 46.0 _________________________ Notes: One customer, General Electric, accounted for 18% , 17% and 18% of the Company’s total revenues in 2017 , 2016 and 2015 , respectively. “Other” assets include corporate-controlled assets, the majority of which are cash and deferred tax assets.
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	A reconciliation of the total reportable segments’ operating profit to income before income taxes follows (in millions): 2017 2016 2015 Operating profit $ 210.3 $ 192.2 $ 168.4 Interest expense 14.6 11.9 10.7 Other expense (income), net — (2.3 ) (0.2 ) Income before income taxes $ 195.7 $ 182.6 $ 157.9
Revenue from External Customers by Products and Services	The following table (in millions) summarizes total net sales of the Company by products and services: 2017 2016 2015 Engineered Components Products $ 347.9 $ 332.6 $ 342.2 Molding Solutions Products 487.3 376.6 324.6 Nitrogen Gas Products 138.7 115.0 115.5 Aerospace Original Equipment Manufacturer Products 323.4 288.4 295.7 Aerospace Aftermarket Products and Services 139.2 118.2 116.0 Total net sales $ 1,436.5 $ 1,230.8 $ 1,194.0
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas	The following table (in millions) summarizes total net sales and long-lived assets of the Company by geographic area: Domestic International Other Total Company Sales 2017 $ 638.6 $ 868.3 $ (70.4 ) $ 1,436.5 2016 562.6 727.4 (59.2 ) 1,230.8 2015 589.6 661.7 (57.3 ) 1,194.0 Long-lived assets 2017 $ 366.7 $ 1,218.1 $ — $ 1,584.8 2016 368.2 1,135.5 — 1,503.6 2015 379.2 1,069.9 — 1,449.1 _________________________ Notes: Germany, with sales of $301.7 million, $ 238.3 million and $ 210.5 million in 2017 , 2016 and 2015 , respectively, represents the only international country with revenues in excess of 10% of the Company's total revenues. “Other” revenues represent the elimination of intercompany sales between geographic locations, of which approximately 78% , 82% and 82% were sales from international locations to domestic locations in 2017, 2016 and 2015, respectively. Germany, with long-lived assets of $ 514.0 million , $ 449.9 million and $ 362.7 million as of December 31, 2017 , 2016 and 2015 , respectively, Singapore, with long-lived assets of $ 237.6 million , $ 238.3 million and $ 246.4 million as of December 31, 2017 , 2016 and 2015 , respectively and Switzerland, with long-lived assets of $ 160.0 million , $ 169.3 million and $ 167.0 million as of December 31, 2017 , 2016 and 2015 , respectively, represent the only international countries with long-lived assets that exceeded 10% of the Company's total long-lived assets in those years.

Summary of Significant Accoun44

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Schedule of Useful Lives [Line Items]
Maximum Maturity Term to Be Considered Cash and Cash Equivalents	3 months
Impairment of goodwill	$ 0
Impairment of other intangible assets	0
Foreign Currency Transaction Gain (Loss), before Tax	756,000	$ 1,873,000	$ 505,000
Research and Development Expense	$ 14,765,000	$ 12,913,000	$ 12,688,000
Buildings [Member] | Minimum [Member]
Schedule of Useful Lives [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Buildings [Member] | Maximum [Member]
Schedule of Useful Lives [Line Items]
Property, Plant and Equipment, Useful Life	50 years
Machinery and equipment [Member] | Minimum [Member]
Schedule of Useful Lives [Line Items]
Property, Plant and Equipment, Useful Life	4 years
Machinery and equipment [Member] | Maximum [Member]
Schedule of Useful Lives [Line Items]
Property, Plant and Equipment, Useful Life	12 years

Summary of Significant Accoun45

Summary of Significant Accounting Policies (Accounting Pronouncements) (Details) - USD ($) $ in Thousands	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
New Accounting Pronouncement, Early Adoption [Line Items]
Retained earnings		$ 1,206,723	$ 1,177,151
Net sales		1,436,499	1,230,754	$ 1,193,975
Pension Costs Guidance [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Curtailment gain		$ 7,217
Subsequent Event [Member] | Revenue Recognition Guidance [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Retained earnings	$ 4,000
Net sales	$ 15,000
Accounting Standards Update 2015-07 [Member] | New Accounting Pronouncement, Early Adoption, Effect [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Current deferred income tax assets			26,639
Current deferred income tax liabilities			$ 1,290

Acquisitions (Details)

Acquisitions (Details) € in Thousands, SFr in Thousands, $ in Thousands

Apr. 03, 2017USD ($)

Aug. 31, 2016CHF (SFr)

Aug. 31, 2016USD ($)

Sep. 30, 2016subsidiary

Dec. 31, 2015CHF (SFr)employeesubsidiary

Dec. 31, 2015USD ($)subsidiary

Sep. 30, 2015EUR (€)subsidiary

Sep. 30, 2015USD ($)subsidiary

Dec. 31, 2015USD ($)

Dec. 31, 2017USD ($)

Dec. 31, 2017USD ($)

Dec. 31, 2016USD ($)

Dec. 31, 2015USD ($)

Aug. 31, 2016USD ($)

Dec. 31, 2015USD ($)employee

Sep. 30, 2015USD ($)

Business Acquisition [Line Items]

Period of acquisitions

3 years

Number of subsidiaries included in business acquisition | subsidiary

3

2

2

1

1

Goodwill

$ 690,223

$ 690,223

$ 633,436

$ 587,992

Gammaflux L.P. [Member]

Business Acquisition [Line Items]

Aggregate purchase price

$ 8,866

Adjustments under terms of Share Purchase Agreement

2

Acquisition related costs

$ 210

Sales since date of acquisition

$ 9,081

Other intangible assets

3,700

Goodwill

$ 1,535

FOBOHA Business [Member]

Business Acquisition [Line Items]

Adjustments under terms of Share Purchase Agreement

SFr 11,342

$ 11,530

Cash paid

SFr 137,918

$ 140,203

Acquisition related costs

2,193

Sales since date of acquisition

$ 18,348

Other intangible assets

39,800

Goodwill

$ 75,574

Priamus [Member]

Business Acquisition [Line Items]

Aggregate purchase price

SFr 9,879

$ 10,111

Number of employees | employee

40

40

Acquisition related costs

$ 574

Sales since date of acquisition

$ 2,028

Priamus System Technologies AG [Member]

Business Acquisition [Line Items]

Number of subsidiaries included in business acquisition | subsidiary

2

2

Thermoplay [Member]

Business Acquisition [Line Items]

Aggregate purchase price

€ 58,066

$ 63,690

Adjustments under terms of Share Purchase Agreement

SFr 1,556

€ 17,054

$ 1,592

$ 18,706

Acquisition related costs

$ 2,195

Sales since date of acquisition

$ 13,593

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Finished goods	$ 79,649	$ 71,100
Work-in-process	97,276	98,246
Raw material and supplies	65,037	58,413
Inventories	$ 241,962	$ 227,759

Property, Plant and Equipment48

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 835,341	$ 762,187
Less accumulated depreciation	(476,043)	(427,698)
Property, plant and equipment, net	359,298	334,489
Depreciation expense	48,693	43,165	$ 39,654
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	21,723	19,952
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	182,226	169,695
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 631,392	$ 572,540

Goodwill and Other Intangible49

Goodwill and Other Intangible Assets (Details) - USD ($)	1 Months Ended	12 Months Ended
	Aug. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Goodwill, beginning of period		$ 633,436,000	$ 587,992,000
Acquisition-related		3,330,000	73,688,000
Foreign currency translation		53,457,000	(28,244,000)
Goodwill, end of period		690,223,000	633,436,000	$ 587,992,000
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment		741,058,000	737,358,000
Finite Lived Intangible Assets Foreign Currency Translation Adjustment		(11,972,000)	(34,272,000)
Finite-Lived Intangible Assets, Accumulated Amortization		(264,814,000)	(223,598,000)
Finite-Lived Intangible Assets, Gross		771,856,000	745,856,000
Intangible Assets, Future Amortization Expense
Amortization of intangible assets expected in 2018		41,000,000
Amortization of intangible assets expected in 2019		41,000,000
Amortization of intangible assets expected in 2020		37,000,000
Amortization of intangible assets expected in 2021		37,000,000
Amortization of intangible assets expected in 2022		36,000,000
Goodwill expected tax deductible amount		43,860,000
Amortization of Intangible Assets		41,216,000	36,753,000	38,502,000
FOBOHA Business [Member]
Goodwill [Roll Forward]
Goodwill, end of period	$ 75,574,000
Intangible Assets, Future Amortization Expense
Other intangible assets	39,800,000
Customer Relationships [Member] | FOBOHA Business [Member]
Intangible Assets, Future Amortization Expense
Other intangible assets	$ 20,700,000
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	16 years
Revenue sharing programs [Member]
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment		293,700,000	293,700,000
Finite-Lived Intangible Assets, Accumulated Amortization		$ (108,075,000)	(95,701,000)
Revenue sharing programs [Member] | Maximum [Member]
Other Intangible Assets:
Range of life (in years)		30 years
Component Repair Program [Member]
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment		$ 111,839,000	111,839,000
Finite-Lived Intangible Assets, Accumulated Amortization		$ (16,508,000)	(10,497,000)
Component Repair Program [Member] | Maximum [Member]
Other Intangible Assets:
Range of life (in years)		30 years
Customer lists/relationships [Member]
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment		$ 215,966,000	215,266,000
Finite-Lived Intangible Assets, Accumulated Amortization		$ (65,385,000)	(53,198,000)
Customer lists/relationships [Member] | Minimum [Member]
Other Intangible Assets:
Range of life (in years)		10 years
Customer lists/relationships [Member] | Maximum [Member]
Other Intangible Assets:
Range of life (in years)		16 years
Patents And Technology [Member]
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment		$ 87,052,000	84,052,000
Finite-Lived Intangible Assets, Accumulated Amortization		$ (48,083,000)	(37,897,000)
Patents And Technology [Member] | Minimum [Member]
Other Intangible Assets:
Range of life (in years)		4 years
Patents And Technology [Member] | Maximum [Member]
Other Intangible Assets:
Range of life (in years)		14 years
Patents And Technology [Member] | FOBOHA Business [Member]
Intangible Assets, Future Amortization Expense
Other intangible assets	$ 14,700,000
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	7 years
Trademarks, Trade Names [Member]
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment		$ 11,950,000	11,950,000
Finite-Lived Intangible Assets, Accumulated Amortization		$ (10,349,000)	(9,967,000)
Trademarks, Trade Names [Member] | Minimum [Member]
Other Intangible Assets:
Range of life (in years)		10 years
Trademarks, Trade Names [Member] | Maximum [Member]
Other Intangible Assets:
Range of life (in years)		30 years
Unamoritized Trade Name [Member]
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment		$ 42,770,000	42,770,000
Unamoritized Trade Name [Member] | FOBOHA Business [Member]
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment	$ 4,400,000
Other [Member]
Other Intangible Assets:
Finite Lived Intangible Assets Before Foreign Currency Translation Adjustment		20,551,000	20,551,000
Finite-Lived Intangible Assets, Accumulated Amortization		$ (16,414,000)	(16,338,000)
Other [Member] | Maximum [Member]
Other Intangible Assets:
Range of life (in years)		15 years
Industrial [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period		$ 602,650,000	557,206,000
Acquisition-related		3,330,000	73,688,000
Foreign currency translation		53,457,000	(28,244,000)
Goodwill, end of period		659,437,000	602,650,000	557,206,000
Industrial [Member] | FOBOHA Business [Member]
Intangible Assets, Future Amortization Expense
Goodwill expected tax deductible amount	$ 0
Aerospace [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period		30,786,000	30,786,000
Acquisition-related		0	0
Foreign currency translation		0	0
Goodwill, end of period		$ 30,786,000	$ 30,786,000	$ 30,786,000

Accrued Liabilities (Details)

Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accrued Liabilities [Abstract]
Payroll and other compensation	$ 53,857	$ 37,560
Deferred revenue and customer advances	40,472	34,812
Pension and other postretirement benefits	8,294	8,261
Accrued income taxes	26,340	26,477
Other	52,278	49,857
Accrued liabilities	$ 181,241	$ 156,967

Debt and Commitments (Details 1

Debt and Commitments (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Fair Value	$ 537,696	$ 504,528
Borrowings under lines of credit and overdrafts	5,669	30,825
Total debt, net of unamortized discounts	532,596	500,954
Less current maturities	(6,999)	(32,892)
Long-term debt	525,597	468,062
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Carrying Amount	421,500	363,300
Fair Value	424,818	364,775
Senior Notes [Member] | 3.97% Senior Notes [Member]
Debt Instrument [Line Items]
Carrying Amount	100,000	100,000
Fair Value	101,348	101,598
Lines of credit and overdrafts [Member]
Debt Instrument [Line Items]
Fair Value	5,669	30,825
Borrowings under lines of credit and overdrafts	5,669	30,825
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Carrying Amount	4,541	5,413
Fair Value	4,964	5,902
Foreign bank borrowings [Member]
Debt Instrument [Line Items]
Carrying Amount	886	1,416
Fair Value	$ 897	$ 1,428

Debt and Commitments (Details N

Debt and Commitments (Details Narrative)	1 Months Ended	12 Months Ended
	Feb. 28, 2017USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Oct. 15, 2014USD ($)
Debt Instrument [Line Items]
Notes and overdrafts payable		$ 5,669,000	$ 30,825,000
Letters of credit outstanding, amount		9,339,000
Long-term Debt, Maturities, Repayments of Principal in 2018		6,999,000
Long-term Debt, Maturities, Repayments of Principal in 2019		955,000
Long-term Debt, Maturities, Repayments of Principal in 2020		508,000
Long-term Debt, Maturities, Repayments of Principal in 2021		601,000
Long-term Debt, Maturities, Repayments of Principal in 2022		421,989,000
Long-term Debt, Maturities, Repayments of Principal, thereafter		101,544,000
Interest paid		13,962,000	11,471,000	$ 10,550,000
Interest capitalized		415,000	324,000	$ 422,000
Bank Overdrafts [Member]
Debt Instrument [Line Items]
Notes and overdrafts payable		369,000	$ 125,000
Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 59,000,000
Line of credit facility, interest rate at period end		2.33%	1.96%
Notes and overdrafts payable		$ 5,300,000	$ 30,700,000
Repayment period		1 month
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			750,000,000
Accordion feature amount			250,000,000
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Carrying amount of debt		$ 421,500,000	363,300,000
Line of credit facility, amount outstanding		421,500,000	363,300,000
Line of credit facility remaining borrowing capacity		$ 428,500,000	$ 386,700,000
Line of credit facility, interest rate at period end		2.65%	1.86%
Revolving Credit Agreement [Member] | Subsidiaries [Member]
Debt Instrument [Line Items]
Line of credit facility, amount outstanding			$ 100,000,000
Bank Overdrafts [Member]
Debt Instrument [Line Items]
Repayment period		2 days
Senior Notes [Member] | 3.97% Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount					$ 100,000,000
Convertible notes stated interest rate					3.97%
Carrying amount of debt		$ 100,000,000	100,000,000
Prepayment percentage of principal					100.00%
Foreign bank borrowings [Member]
Debt Instrument [Line Items]
Carrying amount of debt		$ 886,000	$ 1,416,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant, Consolidated Senior Credit to Consolidated EBITDA (not more than)		3.25
Debt Instrument, Covenant, Total Consolidated Debt to Consolidated EBITDA (not more than)		3.75
Debt Instrument, Covenant, Consolidated EBITDA to Consolidated Cash Interest Expense (not less than)		4.25
Revolving Credit Facility [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 850,000,000
Fees and expenses paid with amendment	2,542,000
Revolving Credit Facility [Member] | Fourth Amendment, Maturity February 2022, Accordion Feature [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	350,000,000
Revolving Credit Facility [Member] | Euro [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	600,000,000
Revolving Credit Facility [Member] | Sterling [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	600,000,000
Revolving Credit Facility [Member] | Swiss Franc [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 600,000,000
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.10%
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.70%
Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.10%
Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member] | Fourth Amendment, Maturity February 2022 [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.70%

Business Reorganization (Detail

Business Reorganization (Details) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2017employeefacility	Sep. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Restructuring Reserve [Roll Forward]
Restructuring reserve		$ 0	$ 0
Employee termination benefit costs			3,796
Payments			(3,099)
Foreign currency translation			(48)
Restructuring reserve			649
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Number of facilities eliminated | facility	2
Curtailment gain		$ 7,217	7,217
Settlement gain			230
Restructuring Reserve [Roll Forward]
Employee termination benefit costs			13
Facility Closing [Member] | Switzerland [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | employee	60
Employee Severance
Restructuring Reserve [Roll Forward]
Employee termination benefit costs			3,796
Other Restructuring
Restructuring Reserve [Roll Forward]
Employee termination benefit costs			$ 3,664
Associated Spring Facility | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated | employee	30

Derivatives (Details)

Derivatives (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Liabilities	$ (408)	$ (1,754)
Designated as Hedging Instrument [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Liabilities	(379)	(255)
Prepaid Assets and Other Current Assets [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Assets	712	397
Prepaid Assets and Other Current Assets [Member] | Designated as Hedging Instrument [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Assets	654	0
Prepaid Assets and Other Current Assets [Member] | Designated as Hedging Instrument [Member] | Interest Rate Contracts [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Assets	654	0
Prepaid Assets and Other Current Assets [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Assets	0	0
Prepaid Assets and Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Assets	58	397
Accrued Liabilities [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Liabilities	(379)	(177)
Accrued Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Liabilities	(29)	(1,499)
Other Liabilities [Member] | Designated as Hedging Instrument [Member] | Interest Rate Contracts [Member]
Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract]
Derivative Liabilities	$ 0	$ (78)

Derivatives (Details 1)

Derivatives (Details 1)	1 Months Ended	12 Months Ended
	Apr. 30, 2012USD ($)Bank	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Apr. 28, 2017USD ($)Bank
Derivative [Line Items]
Maximum Remaining Maturity of Foreign Currency Derivatives		2 years
Other		$ (21,090,000)	$ 4,771,000	$ 9,850,000
Derivative, Net Hedge Ineffectiveness Gain (Loss)		0	0
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Other		18,256,000	5,221,000
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		299,000	(342,000)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		460,000	174,000
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		(161,000)	(516,000)
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member]
Derivative [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net		$ (16,813,000)	$ 2,297,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Term of Interest Rate Derivatives	5 years
Number of Banks Transacted With for Interest Rate Swap Agreements | Bank	3				1
Derivative, Amount of Hedged Item	$ 100,000,000
Derivative, Fixed Interest Rate					1.92%
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Amount of Hedged Item					$ 100,000,000
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	1.03%

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liabilities	$ (408)	$ (1,754)
Minimum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Maturity of Bank Acceptances	3 months
Maximum [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Maturity of Bank Acceptances	6 months
Fair Value, Measurements, Recurring | Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	$ 712	397
Derivative Liabilities	(408)	(1,754)
Bank acceptances	16,092	9,690
Rabbi Trust Asset, Fair Value Disclosure	2,554	2,216
Fair value net asset (liability)	18,950	10,549
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	0	0
Derivative Liabilities	0	0
Bank acceptances	0	0
Rabbi Trust Asset, Fair Value Disclosure	2,554	2,216
Fair value net asset (liability)	2,554	2,216
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	712	397
Derivative Liabilities	(408)	(1,754)
Bank acceptances	16,092	9,690
Rabbi Trust Asset, Fair Value Disclosure	0	0
Fair value net asset (liability)	16,396	8,333
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	0	0
Derivative Liabilities	0	0
Bank acceptances	0	0
Rabbi Trust Asset, Fair Value Disclosure	0	0
Fair value net asset (liability)	$ 0	$ 0

Pension and Other Postretirem57

Pension and Other Postretirement Benefits (Details 1) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Contribution expense		$ 6,644	$ 5,907	$ 5,347
Pension lump-sum settlement charge		0	0	9,856
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension lump-sum settlement charge		21,074	0
Curtailment gain		$ 7,217	$ 0	0
Pension Plan [Member] | Selling, General and Administrative Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension lump-sum settlement charge				$ 9,856
Retirement Savings Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Annual retirement contribution percent		4.00%
Facility Closing [Member]
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain	$ 7,217	$ 7,217

Pension and Other Postretirem58

Pension and Other Postretirement Benefits (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Plan Settlement	$ 0	$ 0	$ (9,856)
Pension Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	493,952	461,035
Service cost	6,055	5,395	5,508
Interest cost	18,819	19,494	20,019
Amendments	1,260	2,231
Actuarial loss	23,953	17,475
Benefits paid	29,149	31,188
Transfers in	2,743	25,968
Curtailment gain	(7,030)	0
Plan Settlement	(21,074)	0
Participant contributions	1,355	1,444
Foreign exchange rate changes	7,226	(7,902)
Benefit obligation, ending balance	498,110	493,952	461,035
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	416,912	395,382
Actual return on plan assets	62,281	20,327
Company contributions	14,923	20,101
Participant contributions	1,355	1,444
Benefits paid	(29,149)	(31,188)
Plan Settlements	(20,857)	0
Transfers in	2,743	18,320
Foreign exchange rate changes	6,230	(7,474)
Fair value of plan assets, ending balance	454,438	416,912	395,382
Funded/(underfunded) status, December 31	(43,672)	(77,040)
Pension Plan [Member] | Domestic Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	389,613	385,629
Service cost	3,931	3,892
Interest cost	17,151	17,523
Amendments	1,233	2,405
Actuarial loss	28,350	6,661
Benefits paid	24,909	26,497
Transfers in	0	0
Curtailment gain	0	0
Plan Settlement	0	0
Participant contributions	0	0
Foreign exchange rate changes	0	0
Benefit obligation, ending balance	415,369	389,613	385,629
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	331,260	326,829
Actual return on plan assets	56,131	13,051
Company contributions	12,896	17,877
Participant contributions	0	0
Benefits paid	(24,909)	(26,497)
Plan Settlements	0	0
Transfers in	0	0
Foreign exchange rate changes	0	0
Fair value of plan assets, ending balance	375,378	331,260	326,829
Funded/(underfunded) status, December 31	(39,991)	(58,353)
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	104,339	75,406
Service cost	2,124	1,503
Interest cost	1,668	1,971
Amendments	27	(174)
Actuarial loss	(4,397)	10,814
Benefits paid	4,240	4,691
Transfers in	2,743	25,968
Curtailment gain	(7,030)	0
Plan Settlement	(21,074)	0
Participant contributions	1,355	1,444
Foreign exchange rate changes	7,226	(7,902)
Benefit obligation, ending balance	82,741	104,339	75,406
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	85,652	68,553
Actual return on plan assets	6,150	7,276
Company contributions	2,027	2,224
Participant contributions	1,355	1,444
Benefits paid	(4,240)	(4,691)
Plan Settlements	(20,857)	0
Transfers in	2,743	18,320
Foreign exchange rate changes	6,230	(7,474)
Fair value of plan assets, ending balance	79,060	85,652	68,553
Funded/(underfunded) status, December 31	(3,681)	(18,687)
Other postretirement benefit plans [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, beginning balance	36,853	41,706
Service cost	83	122	145
Interest cost	1,561	1,766	1,836
Actuarial loss	3,806	(3,495)
Benefits paid	7,251	5,621
Participant contributions	2,209	2,281
Foreign exchange rate changes	309	94
Benefit obligation, ending balance	37,570	36,853	41,706
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning balance	0	0
Company contributions	5,042	3,340
Participant contributions	2,209	2,281
Benefits paid	(7,251)	(5,621)
Fair value of plan assets, ending balance	0	0	$ 0
Funded/(underfunded) status, December 31	$ 37,570	$ 36,853

Pension and Other Postretirem59

Pension and Other Postretirement Benefits (Details 3) - Pension Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, related to pension plans with benefit obligations in excess of plan assets	$ 352,251	$ 450,673
Fair value of plan assets, related to pension plans with benefit obligations in excess of plan assets	293,292	370,616
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, related to pension plans with benefit obligations in excess of plan assets	311,320	389,613
Fair value of plan assets, related to pension plans with benefit obligations in excess of plan assets	267,087	331,260
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation, related to pension plans with benefit obligations in excess of plan assets	40,931	61,060
Fair value of plan assets, related to pension plans with benefit obligations in excess of plan assets	$ 26,205	$ 39,356

Pension and Other Postretirem60

Pension and Other Postretirement Benefits (Details 4) - Pension Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	$ 81,503	$ 450,627
Accumulated benefit obligation	80,967	437,999
Fair value of plan assets	31,002	370,616
Total accumulated benefit obligation	485,777	481,241
Domestic Plan [Member]
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	40,572	389,613
Accumulated benefit obligation	40,090	378,431
Fair value of plan assets	4,797	331,260
Foreign Plan [Member]
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	40,931	61,014
Accumulated benefit obligation	40,877	59,568
Fair value of plan assets	$ 26,205	$ 39,356

Pension and Other Postretirem61

Pension and Other Postretirement Benefits (Details 5) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Accrued liabilities	$ 8,294	$ 8,261
Accrued retirement benefits	89,000	109,350
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other assets	15,287	3,017
Accrued liabilities	3,230	3,180
Accrued retirement benefits	55,729	76,877
Accumulated other non-owner changes to equity, net	(98,006)	(110,988)
Net actuarial loss	(95,973)	(109,594)
Prior service costs	(2,033)	(1,394)
Pension Plan [Member] | Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other assets	4,242	0
Accrued liabilities	2,823	2,813
Accrued retirement benefits	41,410	55,540
Accumulated other non-owner changes to equity, net	(84,990)	(91,530)
Net actuarial loss	(82,736)	(89,772)
Prior service costs	(2,254)	(1,758)
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other assets	11,045	3,017
Accrued liabilities	407	367
Accrued retirement benefits	14,319	21,337
Accumulated other non-owner changes to equity, net	(13,016)	(19,458)
Net actuarial loss	(13,237)	(19,822)
Prior service costs	221	364
Other postretirement benefit plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accrued liabilities	5,064	5,081
Accrued retirement benefits	32,506	31,772
Accumulated other non-owner changes to equity, net	(5,838)	(3,582)
Net actuarial loss	(5,746)	(3,532)
Prior service costs	$ (92)	$ (50)

Pension and Other Postretirem62

Pension and Other Postretirement Benefits (Details 6) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	[1]	$ (10,726)	$ 8,867	$ (9,586)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost		(800)
Net loss		7,787
Amortization of prior service costs (credits)		117
Amortization of actuarial loss		7,140
Foreign exchange rate changes		(1,262)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax		12,982
Other postretirement benefit plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service cost		0
Net loss		(2,392)
Amortization of prior service costs (credits)		(43)
Amortization of actuarial loss		170
Foreign exchange rate changes		9
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax		$ (2,256)
[1]	Net of tax of $4,469, $(4,687) and $3,916 for the years ended December 31, 2017, 2016 and 2015, respectively.

Pension and Other Postretirem63

Pension and Other Postretirement Benefits (Details 7) - Pension Plan [Member]	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Domestic Plan [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	3.90%	4.50%
Increase in compensation	2.56%	2.56%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	4.50%	4.65%	4.25%
Long-term rate of return	7.75%	8.25%	8.25%
Increase in compensation	2.56%	3.71%	3.71%
Foreign Plan [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	1.90%	1.60%
Increase in compensation	2.17%	2.29%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	1.60%	2.80%	2.74%
Long-term rate of return	3.59%	4.73%	5.00%
Increase in compensation	2.29%	2.71%	2.72%

Pension and Other Postretirem64

Pension and Other Postretirement Benefits (Details 8) - Pension Plan [Member]	Dec. 31, 2017
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
The weighted-average target investment allocations in equity securities	65.00%
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
The weighted-average target investment allocations in equity securities	35.00%

Pension and Other Postretirem65

Pension and Other Postretirement Benefits (Details 9) - Pension Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 454,438	$ 416,912	$ 395,382
Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	94,409	82,927
Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	357,364	331,858
Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	2,665	2,127
Cash and short-term investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	10,731	3,207
Cash and short-term investments [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	10,731	3,207
Cash and short-term investments [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Cash and short-term investments [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, U.S. large-cap [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	46,786	39,162
Equity Securities, U.S. large-cap [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, U.S. large-cap [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	46,786	39,162
Equity Securities, U.S. large-cap [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, U.S. mid-cap [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	15,576	12,724
Equity Securities, U.S. mid-cap [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	15,576	12,724
Equity Securities, U.S. mid-cap [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, U.S. mid-cap [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, U.S. small-cap [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	16,157	19,551
Equity Securities, U.S. small-cap [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	16,157	19,551
Equity Securities, U.S. small-cap [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, U.S. small-cap [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, International equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	159,803	135,514
Equity Securities, International equities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, International equities [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	159,803	135,514
Equity Securities, International equities [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Equity Securities, Global Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	51,945	47,445
Equity Securities, Global Entity [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	51,945	47,445
Equity Securities, Global Entity [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0
Equity Securities, Global Entity [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0
U.S. bond funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	109,033	103,399
U.S. bond funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
U.S. bond funds [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	109,033	103,399
U.S. bond funds [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
International bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	41,742	53,783
International bonds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
International bonds [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	41,742	53,783
International bonds [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	2,665	2,127
Other [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Other [Member] | Significant Other Observable Inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Other [Member] | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 2,665	$ 2,127

Pension and Other Postretirem66

Pension and Other Postretirement Benefits (Details 10) $ in Thousands	Dec. 31, 2017USD ($)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in next fiscal year	$ 4,600
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2,018	29,261
2,019	29,243
2,020	29,086
2,021	29,205
2,022	29,378
Years 2023-2027	144,074
Total	290,247
Other postretirement benefit plans [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2,018	3,653
2,019	3,485
2,020	3,204
2,021	3,014
2,022	2,848
Years 2023-2027	11,722
Total	$ 27,926

Pension and Other Postretirem67

Pension and Other Postretirement Benefits (Details 11) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Pension Plan [Member]
Pension and other postretirement benefits expenses
Service cost	$ 6,055	$ 5,395	$ 5,508
Interest cost	18,819	19,494	20,019
Expected return on plan assets	(28,082)	(30,302)	(32,404)
Amortization of prior service cost	446	210	305
Recognized losses	10,557	10,791	15,004
Curtailment loss gain	(7,217)	0	0
Settlement loss	(119)	0	9,939
Net periodic benefit cost	459	5,588	18,371
Estimated net actuarial loss for the defined benefit pension plans that will be amortized from accumulated other non-owner changes to equity into net periodic benefit cost in 2017	11,222
Estimated prior service cost for the defined benefit pension plans that will be amortized from accumulated other non-owner changes to equity into net periodic benefit cost (credit) in 2017	562
Other postretirement benefit plans [Member]
Pension and other postretirement benefits expenses
Service cost	83	122	145
Interest cost	1,561	1,766	1,836
Expected return on plan assets	0	0	0
Amortization of prior service cost	(68)	(373)	(564)
Recognized losses	276	535	1,011
Curtailment loss gain	0	0	0
Settlement loss	0	0	0
Net periodic benefit cost	1,852	$ 2,050	$ 2,428
Estimated net actuarial loss for the defined benefit pension plans that will be amortized from accumulated other non-owner changes to equity into net periodic benefit cost in 2017	641
Estimated prior service cost for the defined benefit pension plans that will be amortized from accumulated other non-owner changes to equity into net periodic benefit cost (credit) in 2017	$ 20

Pension and Other Postretirem68

Pension and Other Postretirement Benefits (Details 12) - Other postretirement benefit plans [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Ultimate health care cost trend rate	4.50%
Health care cost trend rate assumed	6.86%	6.44%
Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rate [Abstract]
One Percentage Point Increase, Effect on postretirement benefit oblilgation	$ 261
One Percentage Point Decrease, Effect on postretirement benefit oblilgation	(242)
One Percentage Point Increase, Effect on postretirement benefit cost	11
One Percentage Point Decrease, Effect on postretirement benefit cost	$ (10)

Pension and Other Postretirem69

Pension and Other Postretirement Benefits (Details 13) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Multiemployer Plans [Line Items]
Contributions by the Company	$ 739	$ 673	$ 343
Multi-employer pension plan [Member] | Swedish Pension Plan (ITP2) [Member]
Multiemployer Plans [Line Items]
Contributions by the Company	$ 739	$ 673	$ 343

Stock-based Compensation - Narr

Stock-based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Jun. 30, 2016	Jun. 30, 2015	Sep. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Term						10 years
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation								$ 2,667
Excess Tax Benefit from Share-based Compensation						$ 2,463	$ 2,229
Allocated Share-based Compensation Expense						12,285	11,493	9,258
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense						4,579	4,284	3,451
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized						$ 12,940
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition						2 years 10 months 6 days
Proceeds from Stock Options Exercised						$ 1,964	4,184	11,022
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value						$ 2,887	$ 4,464	$ 8,331
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value						$ 10.31	$ 7.01	$ 8.86
State [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excess Tax Benefit from Share-based Compensation							$ 198
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period						6 months
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period						5 years
Performance Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period						3 years
Performance period						3 years
New Accounting Pronouncement, Early Adoption, Effect [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Excess Tax Benefit from Share-based Compensation	$ 413	$ 1,402	$ 524	$ 2,320	$ 7,519			$ 7,580

Stock-Based Compensation (Detai

Stock-Based Compensation (Details 1) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation [Abstract]
Weighted-Average Exercise Price, Options Outstanding	$ 33.15	$ 28.67
Weighted-Average Exercise Price, Options Granted	47.80
Weighted-Average Exercise Price, Options Exercised	23.28
Weighted-Average Exercise Price, Options Forfeited	$ 39.82
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options Outstanding	589,160
Granted	131,416
Exercised	(84,393)
Forfeited	(17,403)
Options Outstanding	618,780

Stock-Based Compensation (Det72

Stock-Based Compensation (Details 2)	12 Months Ended
	Dec. 31, 2017$ / sharesshares
$11.45 to $15.83
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares | shares	67,130
Options Outstanding, Average Remaining Life (Years)	1 year 6 months
Options Outstanding, Average Exercise Price	$ 13.43
Options Exercisable, Number of Shares | shares	67,130
Options Exercisable, Average Exercise Price	$ 13.43
Range of Exercise Prices, Lower Range Limit	11.45
Range of Exercise Prices, Upper Range Limit	$ 15.83
$20.69 to $26.32
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares | shares	77,955
Options Outstanding, Average Remaining Life (Years)	4 years 2 months 12 days
Options Outstanding, Average Exercise Price	$ 23.56
Options Exercisable, Number of Shares | shares	77,955
Options Exercisable, Average Exercise Price	$ 23.56
Range of Exercise Prices, Lower Range Limit	20.69
Range of Exercise Prices, Upper Range Limit	$ 26.32
$26.38 to $30.71
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares | shares	146,828
Options Outstanding, Average Remaining Life (Years)	7 years 6 months
Options Outstanding, Average Exercise Price	$ 30.26
Options Exercisable, Number of Shares | shares	58,173
Options Exercisable, Average Exercise Price	$ 29.58
Range of Exercise Prices, Lower Range Limit	26.38
Range of Exercise Prices, Upper Range Limit	$ 30.71
$34.92 to $37.13
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares | shares	195,005
Options Outstanding, Average Remaining Life (Years)	6 years 10 months 24 days
Options Outstanding, Average Exercise Price	$ 36.40
Options Exercisable, Number of Shares | shares	142,844
Options Exercisable, Average Exercise Price	$ 36.59
Range of Exercise Prices, Lower Range Limit	34.92
Range of Exercise Prices, Upper Range Limit	$ 37.13
$38.93 to $63.38
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding, Number of Shares | shares	131,862
Options Outstanding, Average Remaining Life (Years)	9 years
Options Outstanding, Average Exercise Price	$ 47.28
Options Exercisable, Number of Shares | shares	5,750
Options Exercisable, Average Exercise Price	$ 38.96
Range of Exercise Prices, Lower Range Limit	38.93
Range of Exercise Prices, Upper Range Limit	$ 63.38

Stock-Based Compensation (Det73

Stock-Based Compensation (Details 3)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate	1.90%	1.20%	1.58%
Expected life (years)	5 years 3 months 18 days	5 years 3 months 18 days	5 years 3 months 18 days
Expected volatility	26.10%	29.10%	31.10%
Expected dividend yield	1.82%	1.94%	2.06%

Stock-Based Compensation (Det74

Stock-Based Compensation (Details 4) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)$ / sharesshares
Share-based Compensation [Abstract]
Options Outstanding, Expected to Vest, Shares | shares	598,986
Options Outstanding, Expected to Vest, Weighted-Average Exercise Price | $ / shares	$ 33.15
Options Outstanding, Expected to Vest, Aggregate Intrinsic Value | $	$ 18,041
Options Outstanding, Expected to Vest, Weighted-Average Remaining Term	6 years 6 months 29 days
Options Outstanding, Exercisable, Shares | shares	351,852
Options Outstanding, Exercisable, Weighted-Average Exercise Price | $ / shares	$ 28.16
Options Outstanding, Exercisable, Aggregate Intrinsic Value | $	$ 12,352
Options Outstanding, Exercisable, Weighted-Average Remaining Term	5 years 1 month 28 days

Stock-Based Compensation (Det75

Stock-Based Compensation (Details 5) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Risk-free interest rate	1.90%	1.20%	1.58%
Expected volatility	26.10%	29.10%	31.10%
Service And Market Based Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Awards Outstanding	116,746
Granted	43,506
Forfeited	(4,363)
Additional Earned	3,946
Vested/Issued	(31,443)
Awards Outstanding	128,392	116,746
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Weighted-Average Grant Date Fair Value, Awards Outstanding	$ 52.24
Weighted-Average Grant Date Fair Value, Awards Granted	74.20
Weighted-Average Grant Date Fair Value, Awards Forfeited	43.39
Weighted-Average Grant Date Fair Value, Additional Earned	50.45
Weighted-Average Grant Date Fair Value, Awards Vested/Issued	50.45
Weighted-Average Grant Date Fair Value, Awards Outstanding		$ 52.24
Service And Performance Based Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Awards Outstanding	172,042
Granted	43,506
Forfeited	(4,660)
Additional Earned	18,370
Vested/Issued	(73,364)
Awards Outstanding	155,894	172,042
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Weighted-Average Grant Date Fair Value, Awards Outstanding	$ 34.74
Weighted-Average Grant Date Fair Value, Awards Granted	47.69
Weighted-Average Grant Date Fair Value, Awards Forfeited	57.83
Weighted-Average Grant Date Fair Value, Additional Earned	37
Weighted-Average Grant Date Fair Value, Awards Vested/Issued	37
Weighted-Average Grant Date Fair Value, Awards Outstanding		$ 34.74
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Awards Outstanding	347,304
Granted	122,696
Forfeited	(14,573)
Additional Earned	0
Vested/Issued	(144,903)
Awards Outstanding	310,524	347,304
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Weighted-Average Grant Date Fair Value, Awards Outstanding	$ 31.86
Weighted-Average Grant Date Fair Value, Awards Granted	50.30
Weighted-Average Grant Date Fair Value, Awards Forfeited	37.77
Weighted-Average Grant Date Fair Value, Additional Earned	0
Weighted-Average Grant Date Fair Value, Awards Vested/Issued	57.80
Weighted-Average Grant Date Fair Value, Awards Outstanding		$ 31.86
Performance Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Granted	87,012
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Minimum Range of Target Award of Stock Plan	0.00%
Maximum Range of Target Award of Stock Plan	250.00%
Award vesting period	3 years
Risk-free interest rate	1.40%
Expected volatility	24.76%

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income from continuing operations before income taxes:
U.S.	$ 3,082	$ 34,129	$ 11,525
International	192,617	148,492	146,421
Income before income taxes	195,699	182,621	157,946
Current:
U.S. – federal	77,799	7,215	(210)
U.S. – state	1,762	755	2,019
International	48,032	41,516	32,217
Current Income Tax Expense (Benefit)	127,593	49,486	34,026
Deferred:
U.S. – federal	9,596	6,091	7,670
U.S. – state	819	1,060	(1,137)
International	(1,724)	(9,617)	(3,993)
Deferred Income Tax Expense (Benefit)	8,691	(2,466)	2,540
Income taxes	$ 136,284	$ 47,020	$ 36,566

Income Taxes (Details 1)

Income Taxes (Details 1) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Pension	$ 13,255	$ 27,410
Tax loss carryforwards	16,078	16,686
Inventory valuation	10,568	15,518
Other postretirement/postemployment costs	9,440	14,071
Accrued Compensation	5,743	10,121
Other	4,018	6,489
Valuation allowance	(10,223)	(14,957)
Total deferred tax assets	48,879	75,338
Deferred tax liabilities:
Depreciation and amortization	82,422	89,198
Goodwill	(9,440)	(14,871)
Other	(18,361)	(12,282)
Total deferred tax liabilities	110,223	116,351
Non-current deferred tax assets	12,161	25,433
Non-current deferred tax liabilities	73,505	66,446
Net deferred tax liabilities	$ (61,344)	$ (41,013)

Income Taxes (Details 2)

Income Taxes (Details 2) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)
Operating Loss Carryforwards [Line Items]
Tax loss carryforwards	$ 62,285
Tax Credit Carryforwards, Carryforward Period, Minimum	1 year
Tax Credit Carryforwards, Carryforward Period, Maximum	5 years
Tax credit carryforward (1-5 years)	$ 144
U.S. Federal
Operating Loss Carryforwards [Line Items]
Tax loss carryforwards	$ 3,224
Tax Credit Carryforwards, Carryforward Period, Maximum	20 years
State [Member]
Operating Loss Carryforwards [Line Items]
Tax Credit Carryforwards, Carryforward Period, Minimum	1 year
Tax Credit Carryforwards, Carryforward Period, Maximum	20 years
International [Member]
Operating Loss Carryforwards [Line Items]
Tax loss carryforwards	$ 46,255
Tax Credit Carryforwards, Carryforward Period, Minimum	1 year
Tax Credit Carryforwards, Carryforward Period, Maximum	20 years
International with Unlimited Carryforward Periods [Member]
Operating Loss Carryforwards [Line Items]
Tax loss carryforwards	$ 12,806

Income Taxes (Details 3)

Income Taxes (Details 3) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit)	$ 4,152
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Income Tax Expense	86,707
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional State Income Tax Expense	1,423
Unremitted foreign earnings	1,228,170
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Provisional Expense for Undistributed Accumulated Earnings of Foreign Subsidiary	6,932
Foreign earnings repatriated	7,250
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Liability, Current	6,937
Long-term tax liability	79,770	$ 0
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Liability, Noncurrent, Due in Year Two, Three, Four, Five	6,937
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Liability, Noncurrent, Due in Year Six	13,005
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Liability, Noncurrent, Due in Year Seven	17,341
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Liability, Noncurrent, Due in Year Eight	$ 21,676

Income Taxes (Details 4)

Income Taxes (Details 4)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
State taxes (net of federal benefit)	0.10%	0.40%	0.20%
Transition Tax	45.00%	0.00%	0.00%
U.S. Corporate Tax Rate change	2.10%	0.00%	0.00%
Indefinite Reinvestment Assertion	3.50%	0.00%	0.00%
Foreign losses without tax benefit	1.50%	0.70%	1.10%
Foreign operations taxed at different rates	(11.50%)	(10.90%)	(12.90%)
Tax withholding refund	(0.00%)	(0.00%)	(1.90%)
Repatriation from current year foreign earnings	0.00%	1.60%	4.30%
Tax Holidays	(0.80%)	(1.20%)	(3.20%)
Stock awards excess tax benefit	(1.20%)	(1.20%)	(0.00%)
Swiss Legal Entity Reduction	(3.40%)	(0.00%)	(0.00%)
Audit Settlements	(2.70%)	(0.00%)	(0.00%)
Other	2.00%	1.30%	0.60%
Consolidated effective income tax rate	69.60%	25.70%	23.20%

Income Taxes (Details 5)

Income Taxes (Details 5) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Holiday [Line Items]
Income taxes paid globally, net of refunds	$ 51,548	$ 40,842	$ 31,895
Singapore and China [Member]
Income Tax Holiday [Line Items]
Tax benefits	$ 1,540	$ 2,245	$ 5,000
Tax benefits (in dollars per share)	$ 0.03	$ 0.04	$ 0.09

Income Taxes (Details 6)

Income Taxes (Details 6) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at January 1	$ 13,320	$ 10,634	$ 8,560
Tax positions taken during prior periods	1,141	0	1,691
Tax positions taken during the current period	778	117	0
Acquisition	0	2,569	598
Settlements	(4,162)	0	0
Lapse of the applicable statute of limitations	(1,868)	0	(215)
Balance at December 31	9,209	13,320	10,634
Interest and penalties	(257)	(337)	616
The liability for unrecognized tax benefits included accrued interest	$ 1,576	$ 1,838	$ 1,923

Common Stock (Details)

Common Stock (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class of Stock [Line Items]
Common stock repurchases, value	$ 40,791	$ 20,520	$ 52,103
Common Stock [Member]
Class of Stock [Line Items]
Treasury shares issued (in shares)	0	0	0
Employee stock plans (in shares)	341,837	621,259	841,164
Treasury Stock [Member]
Class of Stock [Line Items]
Common stock repurchases (in shares)	677,100	550,994	1,352,596
Common stock repurchases, value	$ 40,791	$ 20,520	$ 52,103

Preferred Stock Preferred Stock

Preferred Stock Preferred Stock (Details) - shares	Dec. 31, 2017	Dec. 31, 2016
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred Stock, Shares Authorized	3,000,000	3,000,000
Preferred Stock, Shares Outstanding	0	0

Stock Plans (Details)

Stock Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Contribution expense	$ 6,644	$ 5,907	$ 5,347
Retirement Savings Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer match of employee contributions to Retirement Savings Plan	50.00%
Share-based compensation arrangement by share-based payment award, maximum salary percentage of employer match	6.00%
Contribution expense	$ 4,088	$ 3,660	$ 3,666
Shares held by Retirement Savings Plan	1,124,360

Stock Plans (Details 1)

Stock Plans (Details 1) - Employee Stock Purchase Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Maximum employee contribution to ESPP	$ 25
Maximum employee contribution to ESPP, percent of base compensation	10.00%
Common Stock Discount Purchase Price	95.00%
Shares Available Under Employee Stock Purchase Plan	4,550,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans	7,734	11,804	11,246
Proceeds from Stock Plans	$ 444	$ 427	$ 403
Number Of Shares Available Under Employee Stock Purchase Plan	277,671

Stock Plans (Details 2)

Stock Plans (Details 2) $ / shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)$ / shares	Dec. 31, 2015USD ($)$ / shares	Dec. 15, 2005shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense | $	$ 12,285	$ 11,493	$ 9,258
Employee Stock Ownership Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	6,900,000
Barnes Group Stock And Incentive Award Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	6,913,978
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	5,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	5,628,950
Other Incentive Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Issuance Ratio	2.84
Non Employee Director Deferred Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	36,000
Award vesting period	3 years
Number of Common Shares Awarded, Non Employee Directors				12,000
Dividend Equivalent Paid To Non Employee Director Deferred Stock Plan | $ / shares	$ 20	$ 21	$ 26
Allocated Share-based Compensation Expense | $	$ 9	$ 28	$ 16
Value Of Restricted Stock Units Granted | $ / shares	$ 50
All Stock Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance	7,166,895
Stock Options and Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Issuance Ratio	1
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	1,224,275
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years
Maximum [Member] | Stock Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	5 years

Weighted Average Shares Outst88

Weighted Average Shares Outstanding (Details) - shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Weighted Average Shares Outstanding [Line Items]
Basic (in shares)	54,073,407	54,191,013	55,028,063
Dilutive effect of:
Diluted (in shares)	54,605,298	54,631,313	55,513,219
Stock options [Member]
Dilutive effect of:
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	46,450	262,336	214,032
Stock options [Member]
Dilutive effect of:
Shares attributable to share-based payment arrangements (in shares)	258,052	166,986	206,778
Performance share awards [Member]
Dilutive effect of:
Shares attributable to share-based payment arrangements (in shares)	273,839	273,314	278,378

Changes in Accumulated Other 89

Changes in Accumulated Other Comprehensive Income by Component (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Accumulated other comprehensive income (loss)	$ (200,828)	$ (143,252)
Other comprehensive income before reclassifications to consolidated statements of income	86,515	(65,243)
Amounts reclassified from accumulated other comprehensive (loss) income to the consolidated statements of income	7,914	7,667
Total other comprehensive income (loss), net of tax	94,429	(57,576)	$ (43,799)
Accumulated other comprehensive income (loss)	(106,399)	(200,828)	(143,252)
Gains and Losses on Cash Flow Hedges
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Accumulated other comprehensive income (loss)	(227)	115
Other comprehensive income before reclassifications to consolidated statements of income	(231)	(739)
Amounts reclassified from accumulated other comprehensive (loss) income to the consolidated statements of income	530	397
Total other comprehensive income (loss), net of tax	299	(342)
Accumulated other comprehensive income (loss)	72	(227)	115
Pension and Other Postretirement Benefit Items
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Accumulated other comprehensive income (loss)	(114,570)	(105,703)
Other comprehensive income before reclassifications to consolidated statements of income	3,342	(16,137)
Amounts reclassified from accumulated other comprehensive (loss) income to the consolidated statements of income	7,384	7,270
Total other comprehensive income (loss), net of tax	10,726	(8,867)
Accumulated other comprehensive income (loss)	(103,844)	(114,570)	(105,703)
Foreign Currency Items
Changes in Accumulated Other Comprehensive Income by Component [Roll Forward]
Accumulated other comprehensive income (loss)	(86,031)	(37,664)
Other comprehensive income before reclassifications to consolidated statements of income	83,404	(48,367)
Amounts reclassified from accumulated other comprehensive (loss) income to the consolidated statements of income	0	0
Total other comprehensive income (loss), net of tax	83,404	(48,367)
Accumulated other comprehensive income (loss)	$ (2,627)	$ (86,031)	$ (37,664)

Changes in Accumulated Other 90

Changes in Accumulated Other Comprehensive Income by Component (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ (14,571)	$ (11,883)	$ (10,698)
Net sales	1,436,499	1,230,754	1,193,975
Income before income taxes	195,699	182,621	157,946
Tax benefit	(136,284)	(47,020)	(36,566)
Total reclassifications in the period	59,415	135,601	$ 121,380
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications in the period	(7,914)	(7,667)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains and Losses on Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	(787)	(618)
Tax benefit	257	221
Income from continuing operations	(530)	(397)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains and Losses on Cash Flow Hedges | Interest Rate Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	(545)	(557)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains and Losses on Cash Flow Hedges | Foreign Exchange Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net sales	(242)	(61)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension and Other Postretirement Benefit Items
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes	(11,166)	(11,163)
Tax benefit	3,782	3,893
Income from continuing operations	(7,384)	(7,270)
Amortization of prior-service credits, net	(378)	163
Amortization of actuarial losses	(10,833)	(11,326)
Curtailment gain	187	0
Settlement loss	$ (142)	$ 0

Information on Business Segme91

Information on Business Segments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)Segment	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Revenues	$ 1,436,499	$ 1,230,754	$ 1,193,975
Operating profit	210,278	192,178	168,396
Assets	2,365,716	2,137,539	2,061,900
Depreciation and amortization	90,150	80,154	78,242
Capital expenditures	58,712	47,577	45,982
Interest expense	14,571	11,883	10,698
Other expense (income), net	8	(2,326)	(248)
Income before income taxes	$ 195,699	$ 182,621	$ 157,946
General Electric [Member]
Segment Reporting Information [Line Items]
Revenue by major customer	18.00%	17.00%	18.00%
Aerospace [Member]
Segment Reporting Information [Line Items]
Revenues	$ 462,600	$ 406,500	$ 411,700
Operating profit	83,200	62,500	65,400
Assets	667,100	647,800	654,100
Depreciation and amortization	33,600	30,000	30,800
Capital expenditures	27,500	21,100	17,200
Industrial [Member]
Segment Reporting Information [Line Items]
Revenues	973,900	824,200	782,300
Operating profit	127,100	129,700	103,000
Assets	1,505,400	1,356,100	1,241,200
Depreciation and amortization	54,800	49,500	46,000
Capital expenditures	31,000	25,900	28,700
Other [Member]
Segment Reporting Information [Line Items]
Revenues	0	0	0
Operating profit	0	0	0
Assets	193,300	133,700	166,500
Depreciation and amortization	1,700	700	1,300
Capital expenditures	$ 200	$ 500	$ 100

Information on Business Segme92

Information on Business Segments (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 1,436,499	$ 1,230,754	$ 1,193,975
Long-lived assets	$ 1,584,800	$ 1,503,600	$ 1,449,100
Sales from international locations to domestic locations	78.00%	82.00%	82.00%
Domestic [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 638,600	$ 562,600	$ 589,600
Long-lived assets	366,700	368,200	379,200
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	868,300	727,400	661,700
Long-lived assets	1,218,100	1,135,500	1,069,900
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	(70,400)	(59,200)	(57,300)
Long-lived assets	0	0	0
Singapore [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	237,600	238,300	246,400
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	301,700	238,300	210,500
Long-lived assets	514,000	449,900	362,700
Switzerland [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	160,000	169,300	167,000
Engineered Components Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	347,900	332,600	342,200
Molding Solutions Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	487,300	376,600	324,600
Nitrogen Gas Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	138,700	115,000	115,500
Aerospace Original Equipment Manufacturing Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	323,400	288,400	295,700
Aerospace Aftermarket Products and Services [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 139,200	$ 118,200	$ 116,000

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Leases [Abstract]
Operating Leases, Rent Expense	$ 15,325	$ 12,939	$ 11,166
Operating Leases, Future Minimum Payments, Due 2018	11,926
Operating Leases, Future Minimum Payments, Due 2019	7,760
Operating Leases, Future Minimum Payments, Due 2020	5,613
Operating Leases, Future Minimum Payments, Due 2021	4,890
Operating Leases, Future Minimum Payments, Due 2022	2,265
Operating Leases, Future Minimum Payments, Due Thereafter	$ 7,372

Schedule II - Valuation and Q94

Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Movement in Valuation Allowances and Reserves [Roll Forward]
Allowance, Beginning Balance	$ 3,992	$ 4,085	$ 3,873
Provision charged to income	1,512	863	1,248
Doubtful accounts written off (net)	(297)	(910)	(404)
Other adjustments	(64)	(46)	(632)
Allowance, Ending Balance	$ 5,143	$ 3,992	$ 4,085

Schedule II - Valuation and Q95

Schedule II - Valuation and Qualifying Accounts (Details 1) - Valuation Allowance of Deferred Tax Assets [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Movement in Valuation Allowances and Reserves [Roll Forward]
Allowance, Beginning Balance	$ 14,957	$ 14,401	$ 15,856
Additions charged to income tax expense	1,161	759	1,043
Additions (reductions) charged to other comprehensive income	(123)	(17)	(59)
Reductions credited to income tax expense	(6,773)	(5,638)	(1,216)
Changes due to foreign currency translation	1,001	(133)	(2,204)
Acquisition		5,585	(981)
Allowance, Ending Balance	$ 10,223	$ 14,957	$ 14,401