v3.22.0.1
Debt - Narrative (Details)
12 Months Ended
Jan. 20, 2021
USD ($)
Jan. 04, 2021
USD ($)
Jan. 31, 2022
USD ($)
Jan. 31, 2021
USD ($)
Jan. 31, 2020
USD ($)
Apr. 30, 2019
USD ($)
Line of Credit Facility [Line Items]            
Proceeds from issuance of Senior Notes, net of debt financing costs     $ 0 $ 739,569,000 $ 0  
Interest expense     25,231,000 1,559,000 442,000  
Amortization of debt issuance costs     $ 1,000,000 800,000 $ 400,000  
A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Minimum consolidated interest coverage ratio     3      
Maximum senior secured leverage ratio     3.00      
Maximum total leverage ratio     5.50      
Maximum total leverage ratio, stepped down     3.50      
3.00% Senior Notes | Senior Notes            
Line of Credit Facility [Line Items]            
Aggregate principal amount $ 750,000,000          
Stated interest rate 3.00%          
Percentage of original principal amount 40.00%          
Proceeds from issuance of Senior Notes, net of debt financing costs $ 738,000,000          
Underwriting commissions 9,400,000          
Payments of financing costs $ 2,600,000          
Interest expense     $ 24,000,000      
Amortization of debt issuance costs       $ 800,000    
Debt instrument, fair value     708,700,000      
3.00% Senior Notes | Senior Notes | Prior to February 15, 2024 | Plus "Make Whole" Premium            
Line of Credit Facility [Line Items]            
Redemption percentage 100.00%          
3.00% Senior Notes | Senior Notes | Prior to February 15, 2024 | Proceeds From Equity Offering, Provided Principal Amount of Redemptions Does Not Exceed 40%            
Line of Credit Facility [Line Items]            
Redemption percentage 103.00%          
3.00% Senior Notes | Senior Notes | After February 15, 2024            
Line of Credit Facility [Line Items]            
Redemption percentage 101.50%          
3.00% Senior Notes | Senior Notes | After February 15, 2025            
Line of Credit Facility [Line Items]            
Redemption percentage 100.75%          
3.00% Senior Notes | Senior Notes | After February 15, 2026            
Line of Credit Facility [Line Items]            
Redemption percentage 100.00%          
3.00% Senior Notes | Senior Notes | Change of control event            
Line of Credit Facility [Line Items]            
Redemption percentage 101.00%          
Minimum | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Commitment fee percentage   0.15%        
Maximum | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Commitment fee percentage   0.25%        
Revolving Credit Facility            
Line of Credit Facility [Line Items]            
Revolving line of credit           $ 150,000,000
Line of credit amount outstanding     $ 0      
Revolving Credit Facility | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Revolving line of credit   $ 750,000,000        
Incremental borrowing capacity   250,000,000        
Letter of Credit            
Line of Credit Facility [Line Items]            
Revolving line of credit           10,000,000
Letter of Credit | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Revolving line of credit   100,000,000        
Swingline Facility            
Line of Credit Facility [Line Items]            
Revolving line of credit           $ 10,000,000
Swingline Facility | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Revolving line of credit   $ 50,000,000        
Alternate Base Rate Loans | Fed Funds Effective Rate Overnight Index Swap Rate | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Interest rate   0.50%        
Alternate Base Rate Loans | Eurodollar | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Interest rate   1.00%        
Alternate Base Rate Loans | Eurodollar | Minimum | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Interest rate   (25.00%)        
Alternate Base Rate Loans | Eurodollar | Maximum | A&R Credit Agreement            
Line of Credit Facility [Line Items]            
Interest rate   0.25%