Debt Instrument, Amortization Percentage

No definition available.

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- Definition

Debt Instrument, Basis Point Spread on Variable, Reduction Percentage

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Collateral as a Percentage of Capital

+ References

No definition available.

+ Details

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Namespace Prefix:	sgms_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Unused Capacity, Commitment Fee, Step-down Percentage

+ References

No definition available.

+ Details

Name:	sgms_LineofCreditFacilityUnusedCapacityCommitmentFeeStepdownPercentage
Namespace Prefix:	sgms_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit, Prepayment Premium Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	sgms_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 1A

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Long-Term and Other Debt - Credit Facilities (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Oct. 18, 2013	Dec. 31, 2013	Oct. 01, 2014	Feb. 12, 2015	Feb. 11, 2015
Debt Instrument
Debt discount capitalized	$ 31,300,000
Senior secured credit facilities
Debt Instrument
Maximum revolving commitments		2,600,000,000
Financing fees capitalized	74,300,000
Debt discount capitalized	20,000,000
Debt issuance costs expensed	64,700,000
Revolver, varying interest rate, due 2018 \| Revolver
Debt Instrument
Maximum revolving commitments		300,000,000.0
Basis spread on variable interest rate	3.00%
Unused capacity, commitment fee percentage	0.50%
Unused capacity, commitment fee, step-down percentage	0.375%
Prepayment premium percentage	1.00%
Revolver, varying interest rate, due 2018 \| Revolver \| Minimum
Debt Instrument
Basis spread on variable rate, reduction percentage	0.25%
Revolver, varying interest rate, due 2018 \| Revolver \| Maximum
Debt Instrument
Basis spread on variable rate, reduction percentage	0.50%
Term Loan, varying interest rate, due 2020 \| Term Loan
Debt Instrument
Maximum revolving commitments		2,300,000,000
Amortization percentage	1.00%
Debt discount capitalized	9,400,000		11,200,000
Term Loan, varying interest rate, due 2020 \| Term Loan \| LIBOR \| Minimum
Debt Instrument
Basis spread on variable interest rate	1.00%
Term Loan, varying interest rate, due 2020 \| Term Loan \| LIBOR \| Maximum
Debt Instrument
Basis spread on variable interest rate	5.00%
Term Loan, varying interest rate, due 2020 \| Term Loan \| Base rate \| Minimum
Debt Instrument
Basis spread on variable interest rate	2.00%
Term Loan, varying interest rate, due 2020 \| Term Loan \| Base rate \| Maximum
Debt Instrument
Basis spread on variable interest rate	4.00%
Senior secured term loan credit facility due 2021 \| Term Loan
Debt Instrument
Maximum revolving commitments				2,000,000,000.0
Amortization percentage	1.00%
Senior secured term loan credit facility due 2021 \| Term Loan \| LIBOR \| Minimum
Debt Instrument
Basis spread on variable interest rate	1.00%
Senior secured term loan credit facility due 2021 \| Term Loan \| LIBOR \| Maximum
Debt Instrument
Basis spread on variable interest rate	5.00%
Senior secured term loan credit facility due 2021 \| Term Loan \| Base rate \| Minimum
Debt Instrument
Basis spread on variable interest rate	2.00%
Senior secured term loan credit facility due 2021 \| Term Loan \| Base rate \| Maximum
Debt Instrument
Basis spread on variable interest rate	4.00%
Subsequent event \| Revolver, varying interest rate, due 2018 \| Revolver
Debt Instrument
Maximum revolving commitments					592,600,000.0	25,000,000.0
Subsequent event \| Revolver, varying interest rate, due 2018 \| Revolver \| Letter of credit
Debt Instrument
Maximum revolving commitments						350,000,000
Bally Technologies Inc. \| Revolver, varying interest rate, due 2018 \| Revolver \| Letter of credit
Debt Instrument
Maximum revolving commitments				$ 567,600,000.0
Direct and Indirect Wholly Owned Domestic Subsidiaries \| Senior secured credit facilities
Debt Instrument
Collateral as a percentage of capital	100.00%
Foreign Subsidiaries \| Senior secured credit facilities
Debt Instrument
Collateral as a percentage of capital	65.00%