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Segment Reporting - Schedule of Revenues by Geographical Area (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Revenues $ 556,910 $ 519,878 $ 504,520 $ 542,208 $ 501,235 $ 506,000 $ 471,231 $ 416,454 $ 2,123,516 $ 1,894,920 $ 1,799,889
U.S.                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Revenues                 1,780,409 1,572,085 1,446,791
Canada                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Revenues                 309,688 287,971 294,913
All Other Countries                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Revenues                 $ 33,419 $ 34,864 $ 58,185