Segment Disclosures - Schedule of Revenue from External Customers (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]
Total revenue	$ 211,110	$ 238,389	$ 236,943	$ 277,455	$ 203,138	$ 239,790	$ 235,498	$ 269,998	$ 963,897	$ 948,424	$ 922,003
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									962,272	946,801	920,481
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									$ 1,625	$ 1,623	$ 1,522