Acquisitions - Purchase Price Allocation (Details) (USD $)	3 Months Ended	10 Months Ended	12 Months Ended				9 Months Ended		2 Months Ended		3 Months Ended	6 Months Ended
	Dec. 31, 2014	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012	Oct. 16, 2014		Feb. 23, 2012		Mar. 31, 2012	Mar. 31, 2012	Oct. 17, 2014
Consideration
Payments to Acquire Businesses, Net of Cash Acquired			$ 382,880,000	$ 105,790,000		$ 89,880,000
Recognized amounts of identifiable assets acquired and liabilities assumed
Goodwill	466,660,000	270,940,000	466,660,000	309,660,000		270,940,000
Acquired Intangible Assets Other than Goodwill
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	9,100,000	65,900,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	1,300,000	8,000,000
Allfast Fasteners [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired													100.00%
Consideration
Payments to Acquire Businesses, Net of Cash Acquired							351,220,000
Business Combination, Consideration Transferred							366,950,000
Recognized amounts of identifiable assets acquired and liabilities assumed
Business Combination, Acquired Receivables, Fair Value													8,950,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory													19,850,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles													165,000,000	[1]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment													26,490,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net													218,010,000
Goodwill													148,940,000	[2]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net													366,950,000
Contingent Consideration Arrangements
Business Acquisition, Deferred Purchase Price							15,730,000	[3]
Deferred Purchase Price, Tax Reimbursements	8,700,000
Deferred Purchase Price, Obligations Assumed on Behalf Seller	7,000,000
Deferred Purchase Price, Amount Paid in 2014	4,100,000
Acquired Intangible Assets Other than Goodwill
Business Acquisition, Transaction Costs			2,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets													340,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities													(2,620,000)
Allfast Fasteners [Member] | Trademarks and Trade Names [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Indefinite-lived Intangible Asset, Amount							49,000,000
Allfast Fasteners [Member] | Customer Relationships [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Finite-lived Intangible Asset, Amount							83,000,000
Finite-Lived Intangible Assets, Useful Life							18 years
Allfast Fasteners [Member] | Technology and Other [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Finite-lived Intangible Asset, Amount							33,000,000
Finite-Lived Intangible Assets, Useful Life							15 years
Business Acquisition, Arminak & Associates [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired									70.00%
Consideration
Initial cash paid net of working capital adjustment									59,200,000
Business Acquisition, Deferred Purchase Price and Contingent Consideration									8,490,000	[4]
Business Combination, Consideration Transferred									67,690,000
Recognized amounts of identifiable assets acquired and liabilities assumed
Business Combination, Acquired Receivables, Fair Value									8,760,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory									4,200,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles									48,400,000	[5]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Long-term Liabilities									(1,610,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net									57,930,000
Redeemable noncontrolling interest									(25,630,000)
Goodwill									35,390,000	[6]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net									67,690,000
Contingent Consideration Arrangements
Contingent consideration low value	3,100,000		3,100,000						8,000,000
Contingent consideration high value	4,100,000		4,100,000						9,000,000
Contingent consideration paid		4,900,000		0
Acquired Intangible Assets Other than Goodwill
Business Acquisition, Transaction Costs											1,000,000	1,300,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets									2,450,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities									(4,270,000)
Business Acquisition, Arminak & Associates [Member] | Trademarks and Trade Names [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Indefinite-lived Intangible Asset, Amount											7,900,000
Business Acquisition, Arminak & Associates [Member] | Customer Relationships [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Finite-lived Intangible Asset, Amount											33,000,000
Finite-Lived Intangible Assets, Useful Life		10 years
Business Acquisition, Arminak & Associates [Member] | Technology and Other [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Finite-lived Intangible Asset, Amount											7,500,000
Finite-Lived Intangible Assets, Useful Life		8 years
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired				100.00%
Payments to Acquire Businesses, Gross						26,800,000
Consideration
Payments to Acquire Businesses, Net of Cash Acquired				105,790,000
Business Acquisition, Deferred Purchase Price and Contingent Consideration				12,370,000	[7]	14,400,000
Business Combination, Consideration Transferred				118,160,000
Recognized amounts of identifiable assets acquired and liabilities assumed
Business Combination, Acquired Receivables, Fair Value				12,420,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory				27,350,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles				41,140,000	[8]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment				20,930,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Income Taxes				(8,900,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Long-term Liabilities				(18,580,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net				79,330,000
Goodwill				38,830,000	[9]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net				118,160,000
Contingent Consideration Arrangements
Business Acquisition, Deferred Purchase Price				9,800,000
Business Acquisition, Contingent Consideration				2,600,000
Acquired Intangible Assets Other than Goodwill
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets				17,480,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities				(12,510,000)
Series of Individually Immaterial Business Acquisitions [Member] | Trademarks and Trade Names [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Indefinite-lived Intangible Asset, Amount				12,100,000
Series of Individually Immaterial Business Acquisitions [Member] | Customer Relationships [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Finite-lived Intangible Asset, Amount				27,600,000
Finite-Lived Intangible Assets, Useful Life				10 years
Series of Individually Immaterial Business Acquisitions [Member] | Technology and Other [Member]
Acquired Intangible Assets Other than Goodwill
Acquired Finite-lived Intangible Asset, Amount				$ 1,500,000
Finite-Lived Intangible Assets, Useful Life				4 years

[1] (b) Consists of approximately $83.0 million of customer relationships with an estimated useful life of 18 years, $33.0 million of technology and other intangible assets with an estimated useful life of 15 years and $49.0 million of trademark/tradename with an indefinite useful life.

[2] (c) All of the goodwill was assigned to the Company's Aerospace reportable segment and is expected to be deductible for tax purposes.

[3] (a) Of the deferred purchase price, approximately $8.7 million, represents the Company's best estimate of the underlying obligations for certain tax amounts the Company has agreed to reimburse the previous owner in order to acquire additional tax attributes. In addition, it includes approximately $7.0 million of other liabilities which the Company has agreed to pay on behalf of the previous owner, of which approximately $4.1 million was paid during 2014.

[4] The contingent consideration represented the Company's best estimate, based on its review, at the time of purchase, of the underlying potential obligations estimated at a range of $8 million to $9 million, of certain Seller tax-related liabilities for which the Company indemnified the Sellers as part of the purchase agreement. During 2012, the Company paid $4.9 million of additional purchase price related to the contingent consideration. No additional amounts were paid during 2013 or 2014. The remaining liability range of $3.1 million to $4.1 million continues to represent the Company's best estimate of the remaining potential obligation at December 31, 2014

[5] Consists of $33.0 million of customer relationships with an estimated 10 year useful life, $7.9 million of trademarks/trade names with an indefinite useful life and $7.5 million of technology and other intangible assets with an estimated eight year useful life

[6] All of the goodwill was assigned to the Company's Packaging reportable segment and is expected to be deductible for tax purposes

[7] Deferred/contingent consideration includes approximately $9.8 million of both short-term and long-term deferred purchase price, based on set amounts and fixed payment schedules per the purchase agreement, and an additional $2.6 million of contingent consideration to be paid based on a multiple of future earnings, as defined.

[8] Consists of approximately $27.6 million of customer relationships with an estimated weighted average useful life of 10 years, $1.5 million of technology and other intangible assets with an estimated weighted average useful life of four years and $12.1 million of trademark/trade names with an indefinite useful life

[9] Goodwill includes approximately $2.9 million of bargain purchase gain resulting from the acquisition of the towing technology and business assets of AL-KO, which is included in other expense, net in the accompanying consolidated statement of income for the year ended December 31, 2013.