Fair Value Measurements - Fair Value of Non-Current Financial Liabilities (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 19, 2020	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Proceeds from line of credit		$ 220,000	$ 0
Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Proceeds from line of credit		220,000
Series 2019-1 Variable Funding Senior Notes Class A-1, variable interest rate of 3.39% at March 31, 2020 | Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Proceeds from line of credit	$ 220,000
Carrying amount | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value		1,300,000		$ 1,300,000
Fair Value | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, fair value		$ 1,297,900		$ 1,326,300