Stock-Based Compensation	9 Months Ended
Nov. 03, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	NOTE 13—STOCK-BASED COMPENSATION The Company estimates the value of equity grants based upon an option-pricing model (“OPM”) and recognizes this estimated value as compensation expense over the vesting periods. The Company recognizes expense associated with performance-based awards when it becomes probable that the performance condition will be met. Once it becomes probable that an award will vest, the Company recognizes compensation expense equal to the number of shares which are probable to vest multiplied by the fair value of the related shares measured at the grant date. Stock-based compensation expense is included in selling, general and administrative expenses on the condensed consolidated statements of income. The Company recorded stock-based compensation expense of $3.7 million and $6.7 million during the three months ended November 3, 2018 and October 28, 2017, respectively. The Company recorded stock-based compensation expense of $17.8 million and $42.9 million during the nine months ended November 3, 2018 and October 28, 2017, respectively. No stock-based compensation cost has been capitalized in the accompanying condensed consolidated financial statements. 2012 Stock Incentive Plan and 2012 Stock Option Plan As of November 3, 2018, 7,682,449 options were outstanding with a weighted-average exercise price of $54.34 per share and 6,037,255 options were vested with a weighted-average exercise price of $52.13 per share. The aggregate intrinsic value of options outstanding, options vested or expected to vest, and options exercisable as of November 3, 2018 was $546.4 million, $513.6 million, and $439.4 million, respectively. Stock options exercisable as of November 3, 2018 had a weighted-average remaining contractual life of 5.31 years. As of November 3, 2018, the total unrecognized compensation expense related to unvested options was $24.1 million, which is expected to be recognized on a straight-line basis over a weighted-average period of 2.86 years. As of November 3, 2018, the Company had 436,048 restricted stock units outstanding with a weighted-average grant date fair value of $52.55 per share. During the three months ended November 3, 2018, 19,940 restricted stock units vested with a weighted-average grant date and vest date fair value of $71.25 per share. During the nine months ended November 3, 2018, 183,215 restricted stock units vested with a weighted-average grant date and vest date fair value of $59.03 per share. As of November 3, 2018, there was $11.8 million of total unrecognized compensation expense related to unvested restricted stock and restricted stock units which is expected to be recognized over a weighted-average period of 2.36 years. Chairman and Chief Executive Officer Option Grant On May 2, 2017, the Company’s Board of Directors granted Mr. Friedman an option to purchase 1,000,000 shares of the Company’s common stock with an exercise price equal to $50 per share. The option contains dual-condition restrictions consisting of both time-based service restrictions over four years and performance-based restrictions linked to achieving the Company’s common stock price objectives of $100, $125 and $150 per share. The option is fully vested on the date of grant but the shares underlying the option remain subject to transfer restrictions to the extent the performance-based and time-based requirements have not been met. The option resulted in a one-time non-cash stock compensation charge of $23.9 million in the nine months ended October 28, 2017. The Company did not record any expense related to this grant in the three months ended October 28, 2017. Time-Based Restrictions The time-based restrictions are measured over an initial four year service period from the date of the award and these restrictions will lapse at the end of each of these first four years at a rate of 250,000 shares per year if (i) Mr. Friedman remains employed at the end of such year, and (ii) the stock price goals have been achieved in such year as described further below. Performance-Based Restrictions The stock price objectives are measured each year and are set at prices for the Company’s common stock of $100, $125 and $150 per share. If all three stock price objectives are met in the first performance year, restrictions will lapse as to 250,000 shares in aggregate at the end of such year, with 83,333 shares tied to a $100 price per share, 83,333 shares tied to a $125 price per share and 83,334 shares tied to a $150 price per share. The same price performance tests are applied in the second year of performance such that restrictions will lapse for an additional 250,000 shares at the end of the second year and then again as to an additional 250,000 shares at the end of each of the third and fourth years so long as Mr. Friedman remains employed at the end of each year. To the extent that any of the price performance objectives is not reached within one of these first four performance years, the stock price objective can be achieved in any subsequent year until the 8th anniversary of the date of grant. Rollover Units In connection with the acquisition of Waterworks in May 2016, $1.5 million rollover units in the Waterworks subsidiary (the “Rollover Units”) were recorded as part of the transaction. The Rollover Units are subject to the terms of the Waterworks LLC agreement, including redemption rights at an amount equal to the greater of (i) the $1.5 million remitted as consideration in the business combination or (ii) an amount based on the percentage interest represented in the overall valuation of the Waterworks subsidiary (the “Appreciation Rights”). The Appreciation Rights are measured at fair value and are subject to fair value measurements during the expected life of the Rollover Units, with changes to fair value recorded in the condensed consolidated statements of income. The fair value of the Appreciation Rights is determined based on an OPM. The Company did not record any expense related to the Appreciation Rights during the three and nine months ended November 3, 2018 and October 28, 2017. As of both November 3, 2018 and February 3, 2018, the liability associated with the Rollover Units and related Appreciation Rights was $1.5 million, which is included in other non-current obligations on the condensed consolidated balance sheets. Profit Interests In connection with the acquisition of Waterworks in May 2016, profit interests units in the Waterworks subsidiary (the “Profit Interests”) were issued to certain Waterworks associates. The Profit Interests are measured at their grant date fair value and expensed on a straight-line basis over their expected life, or five years. The Profit Interests are subject to fair value measurements during their expected life, with changes to fair value recorded in the condensed consolidated statements of income. The fair value of the Profit Interests is determined based on an OPM. For both the three months ended November 3, 2018 and October 28, 2017, the Company recorded $0.1 million related to the Profit Interests, which is included in selling, general and administrative expenses on the condensed consolidated statements of income. For both the nine months ended November 3, 2018 and October 28, 2017, the Company recorded $0.3 million related to the Profit Interests, which is included in selling, general and administrative expenses on the condensed consolidated statements of income. As of November 3, 2018 and February 3, 2018, the liability associated with the Profit Interests was $1.0 million and $0.7 million, respectively, which is included in other non-current obligations on the condensed consolidated balance sheets.

Stock-Based Compensation

9 Months Ended

Nov. 03, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

NOTE 13—STOCK-BASED COMPENSATION

The Company estimates the value of equity grants based upon an option-pricing model (“OPM”) and recognizes this estimated value as compensation expense over the vesting periods. The Company recognizes expense associated with performance-based awards when it becomes probable that the performance condition will be met. Once it becomes probable that an award will vest, the Company recognizes compensation expense equal to the number of shares which are probable to vest multiplied by the fair value of the related shares measured at the grant date.

Stock-based compensation expense is included in selling, general and administrative expenses on the condensed consolidated statements of income. The Company recorded stock-based compensation expense of $3.7 million and $6.7 million during the three months ended November 3, 2018 and October 28, 2017, respectively. The Company recorded stock-based compensation expense of $17.8 million and $42.9 million during the nine months ended November 3, 2018 and October 28, 2017, respectively. No stock-based compensation cost has been capitalized in the accompanying condensed consolidated financial statements.

2012 Stock Incentive Plan and 2012 Stock Option Plan

As of November 3, 2018, 7,682,449 options were outstanding with a weighted-average exercise price of $54.34 per share and 6,037,255 options were vested with a weighted-average exercise price of $52.13 per share. The aggregate intrinsic value of options outstanding, options vested or expected to vest, and options exercisable as of November 3, 2018 was $546.4 million, $513.6 million, and $439.4 million, respectively. Stock options exercisable as of November 3, 2018 had a weighted-average remaining contractual life of 5.31 years. As of November 3, 2018, the total unrecognized compensation expense related to unvested options was $24.1 million, which is expected to be recognized on a straight-line basis over a weighted-average period of 2.86 years.

As of November 3, 2018, the Company had 436,048 restricted stock units outstanding with a weighted-average grant date fair value of $52.55 per share. During the three months ended November 3, 2018, 19,940 restricted stock units vested with a weighted-average grant date and vest date fair value of $71.25 per share. During the nine months ended November 3, 2018, 183,215 restricted stock units vested with a weighted-average grant date and vest date fair value of $59.03 per share. As of November 3, 2018, there was $11.8 million of total unrecognized compensation expense related to unvested restricted stock and restricted stock units which is expected to be recognized over a weighted-average period of 2.36 years.

Chairman and Chief Executive Officer Option Grant

On May 2, 2017, the Company’s Board of Directors granted Mr. Friedman an option to purchase 1,000,000 shares of the Company’s common stock with an exercise price equal to $50 per share.

The option contains dual-condition restrictions consisting of both time-based service restrictions over four years and performance-based restrictions linked to achieving the Company’s common stock price objectives of $100, $125 and $150 per share. The option is fully vested on the date of grant but the shares underlying the option remain subject to transfer restrictions to the extent the performance-based and time-based requirements have not been met. The option resulted in a one-time non-cash stock compensation charge of $23.9 million in the nine months ended October 28, 2017. The Company did not record any expense related to this grant in the three months ended October 28, 2017.

Time-Based Restrictions

The time-based restrictions are measured over an initial four year service period from the date of the award and these restrictions will lapse at the end of each of these first four years at a rate of 250,000 shares per year if (i) Mr. Friedman remains employed at the end of such year, and (ii) the stock price goals have been achieved in such year as described further below.

Performance-Based Restrictions

The stock price objectives are measured each year and are set at prices for the Company’s common stock of $100, $125 and $150 per share. If all three stock price objectives are met in the first performance year, restrictions will lapse as to 250,000 shares in aggregate at the end of such year, with 83,333 shares tied to a $100 price per share, 83,333 shares tied to a $125 price per share and 83,334 shares tied to a $150 price per share.

The same price performance tests are applied in the second year of performance such that restrictions will lapse for an additional 250,000 shares at the end of the second year and then again as to an additional 250,000 shares at the end of each of the third and fourth years so long as Mr. Friedman remains employed at the end of each year.

To the extent that any of the price performance objectives is not reached within one of these first four performance years, the stock price objective can be achieved in any subsequent year until the 8th anniversary of the date of grant.

Rollover Units

In connection with the acquisition of Waterworks in May 2016, $1.5 million rollover units in the Waterworks subsidiary (the “Rollover Units”) were recorded as part of the transaction. The Rollover Units are subject to the terms of the Waterworks LLC agreement, including redemption rights at an amount equal to the greater of (i) the $1.5 million remitted as consideration in the business combination or (ii) an amount based on the percentage interest represented in the overall valuation of the Waterworks subsidiary (the “Appreciation Rights”). The Appreciation Rights are measured at fair value and are subject to fair value measurements during the expected life of the Rollover Units, with changes to fair value recorded in the condensed consolidated statements of income. The fair value of the Appreciation Rights is determined based on an OPM. The Company did not record any expense related to the Appreciation Rights during the three and nine months ended November 3, 2018 and October 28, 2017. As of both November 3, 2018 and February 3, 2018, the liability associated with the Rollover Units and related Appreciation Rights was $1.5 million, which is included in other non-current obligations on the condensed consolidated balance sheets.

Profit Interests

In connection with the acquisition of Waterworks in May 2016, profit interests units in the Waterworks subsidiary (the “Profit Interests”) were issued to certain Waterworks associates. The Profit Interests are measured at their grant date fair value and expensed on a straight-line basis over their expected life, or five years. The Profit Interests are subject to fair value measurements during their expected life, with changes to fair value recorded in the condensed consolidated statements of income. The fair value of the Profit Interests is determined based on an OPM. For both the three months ended November 3, 2018 and October 28, 2017, the Company recorded $0.1 million related to the Profit Interests, which is included in selling, general and administrative expenses on the condensed consolidated statements of income. For both the nine months ended November 3, 2018 and October 28, 2017, the Company recorded $0.3 million related to the Profit Interests, which is included in selling, general and administrative expenses on the condensed consolidated statements of income. As of November 3, 2018 and February 3, 2018, the liability associated with the Profit Interests was $1.0 million and $0.7 million, respectively, which is included in other non-current obligations on the condensed consolidated balance sheets.