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Significant Accounting Policies - Additional Information (Detail) |  | 2 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 24 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 04, 2018 USD ($) | May 05, 2018 USD ($) | Feb. 02, 2019 USD ($) | Nov. 03, 2018 USD ($) | Aug. 04, 2018 USD ($) | May 05, 2018 USD ($) | Feb. 03, 2018 USD ($) | Oct. 28, 2017 USD ($) | Jul. 29, 2017 USD ($) | Apr. 29, 2017 USD ($) | Jan. 28, 2017 USD ($) | Aug. 04, 2018 USD ($) | Feb. 02, 2019 USD ($) | Feb. 03, 2018 USD ($) | Jan. 28, 2017 USD ($) | Feb. 02, 2019 USD ($) | Feb. 03, 2018 CAD ($) | Jan. 30, 2016 USD ($)
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents liquid investments, maturity date |  |  |  |  |  |  |  |  |  |  |  |  | 90 days or less |  |  |  |  |
Cash and cash equivalent, FDIC insured amount |  |  | $ 250,000 |  |  |  |  |  |  |  |  |  | $ 250,000 |  |  | $ 250,000 |  |
Cash and cash equivalent, CDIC insured amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |
Allowance for doubtful accounts |  |  | 1,900,000 |  |  |  | $ 1,800,000 |  |  |  |  |  | 1,900,000 | $ 1,800,000 |  | 1,900,000 |  |
Inventory reserve balances |  |  | 30,700,000 |  |  |  | 31,400,000 |  |  |  |  |  | 30,700,000 | 31,400,000 |  | 30,700,000 |  |
Advertising expense |  |  |  |  |  |  |  |  |  |  |  |  | 97,000,000 | 106,600,000 | $ 79,800,000 |  |  |
Capitalized catalog costs and other current assets |  |  | 16,178,000 |  |  |  | 44,122,000 |  |  |  |  |  | 16,178,000 | 44,122,000 |  | 16,178,000 |  |
Capitalized Interest |  |  |  |  |  |  |  |  |  |  |  |  | 3,100,000 | 3,300,000 | 2,400,000 |  |  |
Capitalized interest related to amortization of Convertible Notes debt discount |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,700,000 | 2,500,000 | 2,400,000 |  |  |
Threshold for determining whether land rent expense is to be recorded for a Capital Lease |  |  |  |  |  |  |  |  |  |  |  |  | 25.00% |  |  |  |  |
Indefinite-lived intangible assets |  |  | 86,022,000 |  |  |  | 100,663,000 |  |  |  |  |  | $ 86,022,000 | 100,663,000 |  | 86,022,000 |  |
Impairment charge on long-lived assets |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |  |  |
Additional impairment for corporate assets and other long-lived assets |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |  |  |
Liability for lease losses |  |  | 9,815,000 |  |  |  | 7,100,000 |  |  |  | $ 3,188,000 |  | $ 9,815,000 | 7,100,000 | 3,188,000 | 9,815,000 |  |
Sale price of aircraft |  |  |  |  |  |  |  |  |  | $ 5,200,000 |  |  |  |  |  |  |  |
Costs incurred in disposal of asset |  |  |  |  |  |  |  |  |  | 300,000 |  |  |  |  |  |  |  |
Revenue recognized on membership period |  |  |  |  |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |
Customer deposits |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |
Revenue recognition, gift cards, breakage |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 | 3,000,000 | $ 3,000,000 |  |  |
Liabilities related to health care coverage |  |  | 2,000,000 |  |  |  | 2,700,000 |  |  |  |  |  | 2,000,000 | 2,700,000 |  | 2,000,000 |  |
Liabilities related to workers' compensation |  |  | 3,300,000 |  |  |  | 3,300,000 |  |  |  |  |  | $ 3,300,000 | $ 3,300,000 |  | 3,300,000 |  |
U.S. corporate income tax rate |  |  |  |  |  |  |  |  |  |  |  |  | 21.00% | 33.70% | 35.00% |  |  |
Tax act, provisional income tax expense |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,000,000 |  |  |  |
Tax act, provisional income tax expense, remeasurement of net deferred tax assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,000,000 |  |  |  |
Tax act, provisional income tax expense, estimate of transition tax |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |
Gift card liabilities |  |  | 17,192,000 |  |  |  | 24,138,000 |  |  |  |  |  | $ 17,192,000 | 24,138,000 |  | 17,192,000 |  |
Deferred revenue, revenue recognized |  |  |  |  |  |  |  |  |  |  |  |  | 21,600,000 |  |  |  |  |
Gift card breakage |  |  |  |  |  |  |  |  |  |  |  |  | 1,500,000 |  |  |  |  |
Net revenue recognized |  |  | 670,891,000 | $ 636,558,000 | $ 640,798,000 | $ 557,406,000 | 670,295,000 | $ 592,473,000 | $ 615,326,000 | $ 562,080,000 |  |  | 2,505,653,000 | 2,440,174,000 | $ 2,134,871,000 |  |  |
Reclassification of deferred rent and lease incentives related to operating leases to ROU assets |  |  | 48,000,000 |  |  |  | 48,900,000 |  |  |  |  |  | 48,000,000 | 48,900,000 |  | 48,000,000 |  |
Increase in loss on extinguishment of debt, operating activities |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,000,000 |  |  |  |
Cash and cash equivalents and restricted cash equivalents |  |  | 5,803,000 |  |  |  | 25,314,000 |  |  |  | 115,067,000 |  | 5,803,000 | 25,314,000 | 115,067,000 | 5,803,000 |  | $ 346,851,000
Increase (decrease) in prepaid expense and other assets |  |  |  |  |  |  |  |  |  |  |  |  | 78,454,000 | (44,252,000) | 35,222,000 |  |  |
Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in repayments under term loans, financing activities |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,000,000 |  |  |  |
Stores [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenue recognized |  |  |  |  |  |  |  |  |  |  |  |  | 1,412,100,000 |  |  |  |  |
Direct Sales [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenue recognized |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,093,500,000 |  |  |  |  |
Gift Card and Merchandise Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of remaining revenue recognized on gift card and merchandise credit |  |  |  |  |  |  |  |  |  |  |  |  | 70.00% |  |  |  |  |
Accounting Standards Update 2014-09 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Right of return for asset merchandise |  |  | 5,900,000 |  |  |  |  |  |  |  |  |  | $ 5,900,000 |  |  | 5,900,000 |  |
Tax adjustment to retained earnings |  |  |  |  |  |  |  |  |  |  |  |  | 6,600,000 |  |  |  |  |
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease to cumulative effect adjustment of retained earnings | $ (21,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capitalized catalog cost |  |  |  |  |  |  | 37,800,000 |  |  |  |  |  |  | 37,800,000 |  |  |  |
Gift card liabilities | 6,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred membership revenue | 3,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue | $ 1,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net revenue recognized |  |  |  |  |  |  |  |  |  |  |  |  | (9,868,000) |  |  |  |  |
Accounting Standards Update 2016-18 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents and restricted cash equivalents |  |  |  |  |  |  | 7,400,000 |  |  |  | 28,000,000 |  |  | 7,400,000 | 28,000,000 |  |  | $ 15,400,000
Increase in capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  |  | 33,700,000 | 12,400,000 |  |  |
Decrease in construction related deposits, investing activities |  |  |  |  |  |  |  |  |  |  |  |  |  | (14,400,000) | (23,400,000) |  |  |
Increase (decrease) in prepaid expense and other assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,300,000 | (1,600,000) |  |  |
Distribution Center Closures [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability for lease losses |  |  | 2,177,000 |  |  |  | 2,585,000 |  |  |  |  |  | 2,177,000 | 2,585,000 |  | 2,177,000 |  |
RHCA Integration Into RH Platform [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability for lease losses |  |  |  |  |  |  |  |  |  |  | 3,200,000 |  |  |  | 3,200,000 |  |  |
Restructuring related costs impact to selling, general and administrative expenses |  |  |  |  |  |  |  |  |  |  | 10,600,000 |  |  |  |  |  |  |
Inventory impairment |  |  |  |  |  |  |  |  |  |  | 2,700,000 |  |  |  |  |  |  |
Other associated costs |  |  |  |  |  |  |  |  |  |  | 300,000 |  |  |  |  |  |  |
Restructuring related costs impact to cost of goods sold |  |  |  |  |  |  |  |  |  |  | 1,100,000 |  |  |  |  |  |  |
RHCA Integration Into RH Platform [Member] | Distribution Center Closures [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability for lease losses |  |  | 2,200,000 |  |  |  |  | 2,100,000 |  |  |  |  | 2,200,000 |  |  | 2,200,000 |  |
Employee termination benefits |  |  |  |  |  |  |  | 900,000 |  |  |  |  | 200,000 |  |  |  |  |
Restructuring related costs impact to selling, general and administrative expenses |  |  |  |  |  |  |  | 3,000,000 |  |  |  |  | 2,600,000 |  |  |  |  |
Decrease in lease loss liability |  |  |  |  |  | $ 1,200 |  |  |  |  |  |  |  |  |  |  |  |
RH Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment to goodwill |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |  |  |
Impairment to tradename and domain names |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |  |  |
Indefinite-lived intangible assets |  |  | 48,563,000 |  |  |  | 48,563,000 |  |  |  | 48,524,000 |  | 48,563,000 | 48,563,000 | 48,524,000 | 48,563,000 |  |
Net revenue recognized |  |  |  |  |  |  |  |  |  |  |  |  | 2,375,472,000 | 2,319,332,000 | 2,060,044,000 |  |  |
RH Segment [Member] | Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment charge, reclassified |  |  |  |  |  |  |  |  |  |  | 4,800,000 |  |  |  |  |  |  |
RH Segment [Member] | RHCA Integration Into RH Platform [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability for lease losses |  |  |  | 3,400,000 |  |  | 4,400,000 |  |  |  |  |  |  | 4,400,000 |  |  |  |
Waterworks [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment to goodwill |  |  | 17,400,000 |  |  |  | 33,700,000 |  |  |  |  |  | $ 17,445,000 | $ 33,700,000 |  | 51,100,000 |  |
Percentage of estimated fair value towards income approach |  |  |  |  |  |  |  |  |  |  |  |  | 80.00% | 80.00% |  |  |  |
Percentage of estimated fair value towards market approach |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% | 20.00% |  |  |  |
Impairment to tradename and domain names |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,641,000 | $ 0 |  |  |  |
Percentage of fair value of tradename in excess of book value |  |  |  |  |  |  |  |  |  |  |  |  |  | 26.00% |  |  |  |
Indefinite-lived intangible assets |  |  | 37,459,000 |  |  |  | 52,100,000 |  |  |  | 52,100,000 |  | 37,459,000 | $ 52,100,000 | 52,100,000 | 37,459,000 |  |
Net revenue recognized |  |  |  |  |  |  |  |  |  |  |  |  | 130,181,000 | $ 120,842,000 | $ 74,827,000 |  |  |
Waterworks [Member] | Tradename [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment to tradename and domain names |  | $ 0 |  | $ 0 | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Indefinite-lived intangible assets |  |  | 37,500,000 |  |  |  |  |  |  |  |  |  | 37,500,000 |  |  | 37,500,000 |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. corporate income tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 35.00% |  |  |  |
Reclassification from leasehold improvement to ROU assets |  |  | 300,000,000 |  |  |  | 250,000,000 |  |  |  |  |  | 300,000,000 | $ 250,000,000 |  | 300,000,000 |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification from leasehold improvement to ROU assets |  |  | 250,000,000 |  |  |  | 200,000,000 |  |  |  |  |  | $ 250,000,000 | 200,000,000 |  | 250,000,000 |  |
Computer Software [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property and Equipment, Useful Life |  |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |
Computer Software [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property and Equipment, Useful Life |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |
Capitalized Property and Equipment [Member] | RHCA Integration Into RH Platform [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring related costs, including loss on disposal |  |  |  |  |  |  |  |  |  |  | $ 5,500,000 |  |  |  |  |  |  |
Capitalized Property and Equipment [Member] | RHCA Integration Into RH Platform [Member] | Distribution Center Closures [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring related costs, including loss on disposal |  |  |  |  |  |  |  | $ 2,100,000 |  |  |  |  | $ 200,000 |  |  |  |  |
Other Current Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product recall accrual |  |  | 7,800,000 |  |  |  | 1,200,000 |  |  |  |  |  | 7,800,000 | 1,200,000 |  | 7,800,000 |  |
Other Non-Current Obligations [Member] | RHCA Integration Into RH Platform [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability for lease losses |  |  | 9,800,000 |  |  |  | 7,100,000 |  |  |  |  |  | 9,800,000 | 7,100,000 |  | 9,800,000 |  |
Other Non-Current Obligations [Member] | RHCA Integration Into RH Platform [Member] | Distribution Center Closures [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Liability for lease losses |  |  | $ 2,200,000 |  |  |  | $ 2,600,000 |  |  |  |  |  | $ 2,200,000 | 2,600,000 |  | $ 2,200,000 |  |
Overstatement of Treasury Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revision due to prior year misstatement in current year financial statements, amount |  | 19,500,000 |  |  |  |  |  |  |  |  |  | $ 19,500,000 |  | 19,500,000 |  |  |  |
Overstatement of Additional Paid-in Capital [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Summary Of Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revision due to prior year misstatement in current year financial statements, amount |  | $ 19,500,000 |  |  |  |  |  |  |  |  |  | $ 19,500,000 |  | $ 19,500,000 |  |  |  |

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- Definition Accrued product recall. + References No definition available. + Details
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Namespace Prefix: | rh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Additional impairment of corporate assets and other long lived assets held for use. + References No definition available. + Details
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Namespace Prefix: | rh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Capitalized catalog cost. + References No definition available. + Details
Name: | rh_CapitalizedCatalogCost
Namespace Prefix: | rh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Capitalized catalog costs included in prepaid expenses and other current assets. + References No definition available. + Details
Name: | rh_CapitalizedCatalogCostsIncludedInPrepaidExpensesAndOtherCurrentAssets
Namespace Prefix: | rh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Capitalized Interest Related To Amortization Of Convertible Notes Debt Discount + References No definition available. + Details
Name: | rh_CapitalizedInterestRelatedToAmortizationOfConvertibleNotesDebtDiscount
Namespace Prefix: | rh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Cash CDIC insured amount. + References No definition available. + Details
Name: | rh_CashCDICInsuredAmount
Namespace Prefix: | rh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cash Equivalents Maturity Period Of Highly Liquid Investments + References No definition available. + Details
Name: | rh_CashEquivalentsMaturityPeriodOfHighlyLiquidInvestments
Namespace Prefix: | rh_
Data Type: | xbrli:stringItemType
Balance Type: | na
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