Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies - Additional Information (Details)

v3.20.4
Significant Accounting Policies - Additional Information (Details)
12 Months Ended
Dec. 31, 2020
USD ($)
Segment
Customer
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
May 29, 2020
USD ($)
May 01, 2020
USD ($)
Significant Accounting Policies [Line Items]          
Number of operating segment | Segment 1        
Number of customer exceeding 5% of revenue | Customer 0        
Depreciation expenses $ 261,300,000 $ 253,700,000 $ 230,400,000    
Self-insurance reserve 139,600,000 141,100,000      
Long-term portions of self insurance reserve 86,500,000 86,700,000      
Allocated share-based compensation expense 14,300,000 42,900,000 10,700,000    
Employee service share-based compensation, tax benefit from compensation expense (3,800,000) (10,800,000) (3,200,000)    
Advertising expense $ 19,000,000.0 $ 28,300,000 $ 28,200,000    
Common stock split, description On February 21, 2020, we announced that our Board of Directors approved a three-for-two split of our common stock for shareholders of record as of the close of business on the record date of March 10, 2020. On March 24, 2020, those shareholders received one additional share of common stock for every two shares owned.        
Common stock split, conversion ratio 1.5        
2019 Share Repurchase Program [Member] | Maximum [Member]          
Significant Accounting Policies [Line Items]          
Stock repurchase program, authorized amount       $ 21,500,000 $ 350,000,000.0
2020 Share Repurchase Program [Member]          
Significant Accounting Policies [Line Items]          
Stock repurchase program, remaining authorized repurchase amount $ 555,200,000        
2020 Share Repurchase Program [Member] | Maximum [Member]          
Significant Accounting Policies [Line Items]          
Stock repurchase program, authorized amount         $ 700,000,000.0