Skechers U.S.A., Inc. Annual report pursuant to Section 13 and 15(d)

Long-Term Borrowings - Long-Term Debt (Parenthetical) (Detail) (USD $)	Dec. 31, 2012
Note payable to bank one [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Monthly repayment installment of note payable	$ 357,000
Variable interest rate of note payable	3.96%
Balloon payment required under note payable	76,976,000
Note payable to bank two [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Monthly repayment installment of note payable	531,400
Fixed interest rate of note payable	3.54%
Balloon payment required under note payable	12,635,000
Note payable to bank three [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Monthly repayment installment of note payable	483,900
Fixed interest rate of note payable	3.19%
Balloon payment required under note payable	11,670,000
Notes Payable to TCF Equipment Finance, Inc Five [Member]
Schedule of Capitalization, Long-term Debt [Line Items]
Monthly repayment installment of note payable	$ 30,500
Fixed interest rate of note payable	5.24%