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Debt - Long-term debt, net (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Feb. 06, 2020	Jan. 24, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Long-term debt	$ 1,275,000			$ 1,175,000
Debt issuance costs, net	(17,618)			(4,583)
Long-term debt, net	1,257,382			1,170,417
Senior Notes \| January 2022 Notes
Debt Instrument [Line Items]
Long-term debt	0			450,000
Debt issuance costs, net	0			(2,034)
Long-term debt, net	0		$ 428,900	447,966
Senior Notes \| March 2023 Notes
Debt Instrument [Line Items]
Long-term debt	0			350,000
Debt issuance costs, net	0			(2,549)
Long-term debt, net	0	$ 299,400		347,451
Senior Notes \| January 2025 Notes
Debt Instrument [Line Items]
Long-term debt	600,000			0
Debt issuance costs, net	(10,532)			0
Long-term debt, net	589,468			0
Senior Notes \| January 2028 Notes
Debt Instrument [Line Items]
Long-term debt	400,000			0
Debt issuance costs, net	(7,086)			0
Long-term debt, net	392,914			0
Secured debt \| Senior Secured Credit Facility
Debt Instrument [Line Items]
Long-term debt	275,000			375,000
Debt issuance costs, net	0			0
Long-term debt, net	275,000			375,000
Secured debt \| Senior Secured Credit Facility \| Other noncurrent assets, net
Debt Instrument [Line Items]
Debt issuance costs related to line of credit arrangements	$ 4,100			$ 4,500