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

Annual report pursuant to Section 13 and 15(d)

Line of Credit - Additional Information (Detail)

Line of Credit - Additional Information (Detail) - 2019 Credit Agreement [Member] - USD ($)		12 Months Ended
	Nov. 21, 2019	Dec. 31, 2019	Jun. 30, 2015
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Senior unsecured revolving credit facility	$ 500,000,000.0
Maturity date of credit agreement	Nov. 21, 2024
Line of Credit [Member]
Debt Instrument [Line Items]
Maturity date of credit agreement		Jun. 30, 2020
Maximum amount of credit facility			$ 250,000,000.0
Line of credit facility, interest rate description		At the Company’s option, any loan (other than swingline loans) will bear interest at a rate equal to (a) LIBOR plus an applicable margin between 1.125% and 1.625% based upon the Company’s Total Adjusted Net Leverage Ratio (as defined in the 2019 Credit Agreement) or (b) a base rate (defined as the highest of (i) the Federal Funds Rate plus 0.50%, (ii) the Bank of America prime rate and (iii) LIBOR plus 1.00%) plus an applicable margin between 0.125% and 0.625% based upon the Company’s Total Adjusted Net Leverage Ratio.
Increase in leverage ratio		4.25%
Origination, arrangement and legal fees		$ 1,600,000
Outstanding letters of credit		$ 0
Line of Credit [Member] \| Federal Funds Rate [Member]
Debt Instrument [Line Items]
Interest rate of line of credit agreement		0.50%
Line of Credit [Member] \| LIBOR plus 1.00% [Member]
Debt Instrument [Line Items]
Interest rate of line of credit agreement		1.00%
Line of Credit [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Line of credit, increase			$ 250,000,000.0
Line of credit facility, fee percentage		0.25%
Adjusted net leverage ratio		3.75%
Line of Credit [Member] \| Maximum [Member] \| LIBOR Loans [Member]
Debt Instrument [Line Items]
Interest rate of line of credit agreement		1.625%
Line of Credit [Member] \| Maximum [Member] \| LIBOR plus 1.00% [Member]
Debt Instrument [Line Items]
Interest rate of line of credit agreement		0.625%
Line of Credit [Member] \| Maximum [Member] \| Letter of Credit Fee [Member]
Debt Instrument [Line Items]
Line of credit facility, fee percentage		1.625%
Line of Credit [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Line of credit facility, fee percentage		0.125%
Line of Credit [Member] \| Minimum [Member] \| LIBOR Loans [Member]
Debt Instrument [Line Items]
Interest rate of line of credit agreement		1.125%
Line of Credit [Member] \| Minimum [Member] \| LIBOR plus 1.00% [Member]
Debt Instrument [Line Items]
Interest rate of line of credit agreement		0.125%
Line of Credit [Member] \| Minimum [Member] \| Letter of Credit Fee [Member]
Debt Instrument [Line Items]
Line of credit facility, fee percentage		1.125%
Letters of Credit [Member]
Debt Instrument [Line Items]
Maximum amount of credit facility		$ 100,000,000.0
Swingline Loans [Member]
Debt Instrument [Line Items]
Maximum amount of credit facility		$ 25,000,000.0