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Gain Contingency, Patents Requiring Declaratory Judgment, Number

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Loss Contingency, Patents Found Infringed Upon, Number of Products

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Loss Contingency, Sales and Imports of Affected Products, Value

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Outstanding Guarantees And Letters Of Credit

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Number of entity's patents that another entity has allegedly infringed.

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Number of entity's patents that another entity was found not to have infringed.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

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Interest expense (income) directly attributable to an award in settlement of litigation.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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- Definition

Number of another entity's patents that the entity has allegedly infringed.

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Number of another entity's patents that the entity was found to have infringed.

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Number of another entity's patents that the entity was found not to have infringed.

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Number of pending claims pertaining to a loss contingency.

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The number of businesses acquired by the entity during the period.

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- Definition

Carrying amount as of the balance sheet date of known and reasonably estimable amounts of recoveries from third-parties pertaining to an entity's environmental remediation obligations. An entity's balance sheet may include several assets that relate to an environmental remediation obligation. Among them are the following: a. Receivables from other potentially responsible parties that are not providing initial funding; b. anticipated recoveries from insurers; and c. anticipated recoveries from prior owners as a result of indemnification agreements.

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Commitments and Contingencies (Narrative) (Details)							1 Months Ended									6 Months Ended	9 Months Ended	12 Months Ended
Commitments and Contingencies (Narrative) (Details)	Dec. 27, 2016 patent	Nov. 01, 2016 patent	Sep. 19, 2016 facility	Aug. 11, 2016 patent	Nov. 27, 2013 USD ($)	Oct. 14, 2008 claim	Dec. 31, 2015 USD ($)	Jun. 30, 2015 USD ($) patent	Nov. 30, 2014 USD ($)	Mar. 31, 2014 USD ($) patent	May 31, 2012 patent	Apr. 30, 2012 claim	Jan. 31, 2011 USD ($)	Dec. 31, 2008 USD ($)	Oct. 31, 2006 claim product	Aug. 31, 2016 patent	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) claim	Dec. 31, 2015 USD ($) patent	Dec. 31, 2014 USD ($)	Dec. 31, 2009 patent	Dec. 31, 2008 claim	Dec. 31, 2004 USD ($) patent
Loss Contingencies [Line Items]
Total rent expense																		$ 31,100,000	$ 27,700,000	$ 22,700,000
Availability under senior revolving credit facility																		15,000,000
Outstanding guarantees and letters of credit																		6,700,000
Guarantees related to capital lease obligations																		130,700,000
Long-term debt							$ 1,515,800,000											3,806,800,000	1,515,800,000
Net carrying value																		3,806,800,000
Senior Revolving Credit Facility [Member]
Loss Contingencies [Line Items]
Long-term debt							0											0	0
Notes Payable to Banks [Member]
Loss Contingencies [Line Items]
Long-term debt							198,200,000											160,400,000	$ 198,200,000
Letter of Credit [Member] \| Senior Revolving Credit Facility [Member]
Loss Contingencies [Line Items]
Credit commitment outstanding																		0
Fairchild [Member]
Loss Contingencies [Line Items]
Number of facilities acquired \| facility			2
Maximum remediation cost recoveries receivable																		$ 150,000,000
ON Semi, SCI, and Fairchild [Member]
Loss Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon \| patent																6
Power Integrations, Inc. [Member]
Loss Contingencies [Line Items]
Number of outstanding proceedings \| claim																		8
Power Integrations, Inc. [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Number of outstanding proceedings \| claim																		5
Power Integrations, Inc., USPTO [Member]
Loss Contingencies [Line Items]
Number of outstanding proceedings \| claim																		12
Power Integrations, Delaware, 2004 [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Number of outstanding proceedings \| claim															7
Loss contingency, number of patents allegedly infringed upon																						2	4
Loss contingency, number of products that infringed upon patents \| product															33
Litigation settlement, amount awarded to (against) entity													$ (12,200,000)	$ (6,100,000)									$ (34,000,000)
Power Integrations, Delaware, 2008 [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon \| claim												4										3
Gain contingency, number of patents allegedly infringed upon \| claim						2
Power Integrations, Northern District of California, 2009 [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon \| patent																					3
Litigation settlement, amount awarded to (against) entity							(139,800,000)			$ (105,000,000)
Gain contingency, number of patents allegedly infringed upon \| patent																					2
Loss contingency, number of patents infringed upon \| patent										2
Gain contingency, number of patents not infringed upon \| patent										1
Litigation settlement, amount vacated									$ 105,000,000
Litigation settlement interest							$ 7,000,000
Power Integrations, Delaware, 2012 [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon \| patent											5
Litigation settlement, amount awarded to (against) entity								$ 2,400,000
Gain contingency, number of patents allegedly infringed upon \| patent											3
Power Integrations, Delaware, 2012 [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Litigation settlement, amount awarded to (against) entity								$ (100,000)
Loss contingency, number of patents infringed upon \| patent								1
Loss contingency, number of patents found not infringed \| patent											3
Power Integrations, Northern District of California, 2015 [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon \| patent																			2
Gain contingency, number of patents allegedly infringed upon \| patent																			4
Power Integrations, Arizona, 2016 [Member]
Loss Contingencies [Line Items]
Gain contingency, number of patents allegedly infringed upon \| patent		2		6
Number of patents requiring declaratory judgment \| patent				3
Power Integrations, Northern District of California, 2016 [Member]
Loss Contingencies [Line Items]
Gain contingency, number of patents allegedly infringed upon \| patent		6
Power Integrations, Eastern District of Texas, 2016 [Member]
Loss Contingencies [Line Items]
Gain contingency, number of patents allegedly infringed upon \| patent	6
Acbel Polytech, Inc. [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Loss contingency, damages sought					$ 30,000,000
Fairchild [Member]
Loss Contingencies [Line Items]
Business acquisition, maximum indemnification period																		6 years
Minimum [Member] \| Power Integrations, Inc. [Member]
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss																		$ 4,000,000
Minimum [Member] \| Power Integrations, Delaware, 2004 [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Value of sales and imports of affected products																	$ 500,000
Maximum [Member] \| Power Integrations, Inc. [Member]
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss																		$ 20,000,000
Maximum [Member] \| Power Integrations, Delaware, 2004 [Member] \| Fairchild [Member]
Loss Contingencies [Line Items]
Value of sales and imports of affected products																	$ 750,000