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

Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Income Taxes [Line Items]
U.S. federal and state statutory rate									39.00%
Income (loss) before income taxes									$ 191,380,000	$ 82,215,000	$ 10,473,000
Income tax expense (benefit)									39,184,000us-gaap_IncomeTaxExpenseBenefit	21,347,000us-gaap_IncomeTaxExpenseBenefit	(39,000)us-gaap_IncomeTaxExpenseBenefit
Effective tax rate									20.50%	26.00%	(0.40%)
Income (loss) before income taxes	21,921,000us-gaap_NetIncomeLoss	51,123,000us-gaap_NetIncomeLoss	34,802,000us-gaap_NetIncomeLoss	30,965,000us-gaap_NetIncomeLoss	14,165,000us-gaap_NetIncomeLoss	26,849,000us-gaap_NetIncomeLoss	7,094,000us-gaap_NetIncomeLoss	6,680,000us-gaap_NetIncomeLoss	138,811,000us-gaap_NetIncomeLoss	54,788,000us-gaap_NetIncomeLoss	9,512,000us-gaap_NetIncomeLoss
Cash and cash equivalents	466,685,000				372,011,000				466,685,000	372,011,000	325,826,000	351,144,000
Repatriation of earnings									42,800,000
Cumulative total earnings	318,200,000				226,000,000				318,200,000	226,000,000
Net operating loss carry-forwards	56,900,000us-gaap_OperatingLossCarryforwards				55,900,000us-gaap_OperatingLossCarryforwards				56,900,000us-gaap_OperatingLossCarryforwards	55,900,000us-gaap_OperatingLossCarryforwards
Valuation allowance against deferred tax assets	17,534,000				19,903,000				17,534,000	19,903,000
Credit carry-forward expiration, description									These tax credit and net operating loss carry-forward amounts don't begin to expire until 2028 and 2021, respectively.
Decrease in unrecognized tax benefits									(2,900,000)
Unrecognized tax benefits recorded as reduction in income tax expense	7,100,000								7,100,000
Interest and penalties									(200,000)	100,000	200,000
Accrued interest and penalties	1,700,000				1,800,000				1,700,000	1,800,000
Prior year unrecognized tax benefits by result of expiring statutes									1,400,000
Reduction in prior period unrecognized tax benefits									4,100,000
Non-U.S jurisdictions [Member]
Schedule Of Income Taxes [Line Items]
Income (loss) before income taxes									108,600,000
Average income tax rate									6.20%
Income tax expense (benefit)									6,700,000
Income (loss) before income taxes									108,600,000
Income before income taxes relates to foreign losses									13,000,000
Cash and cash equivalents	193,200,000								193,200,000
Percentage of cash and cash equivalents									41.40%
U.S Jurisdictions [Member]
Schedule Of Income Taxes [Line Items]
Income (loss) before income taxes									82,800,000
Average income tax rate									39.30%
Income tax expense (benefit)									32,500,000
Jersey [Member]
Schedule Of Income Taxes [Line Items]
Income (loss) before income taxes									77,600,000
Other jurisdictions [Member]
Schedule Of Income Taxes [Line Items]
Income (loss) before income taxes									21,997,000	14,142,000	16,369,000
Income tax expense (benefit)									3,795,000	3,787,000	3,921,000
Consolidated earnings (loss) before taxes, percent									5.00%
Federal [Member]
Schedule Of Income Taxes [Line Items]
Net operating loss carry-forwards	0				47,700,000				0	47,700,000
Tax credits due to operating loss carried back										7,800,000
Domestic [Member]
Schedule Of Income Taxes [Line Items]
Income (loss) before income taxes									82,778,000	38,705,000	(27,379,000)
Income tax expense (benefit)									32,500,000	12,807,000	(5,867,000)
Valuation allowance against deferred tax assets	0				0				0	0
State [Member]
Schedule Of Income Taxes [Line Items]
Net operating loss carry-forwards	65,600,000				109,200,000				65,600,000	109,200,000
Tax credits due to operating loss carried back									7,200,000	6,000,000
Valuation allowance against deferred tax assets	$ 0				$ 0				$ 0	$ 0
Minimum [Member] \| Non-U.S jurisdictions [Member]
Schedule Of Income Taxes [Line Items]
Statutory federal rate									0.00%
Maximum [Member] \| Non-U.S jurisdictions [Member]
Schedule Of Income Taxes [Line Items]
Statutory federal rate									34.00%