Long-Term Debt and Credit Facilities - Repurchases (Details) - USD ($) $ in Thousands	3 Months Ended			12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jul. 12, 2017
Net cash consideration				$ 71,184
Gain on early extinguishment of debt, net	$ (11,381)	$ 28,070	$ (9,589)	16,689	$ (9,589)	$ (1,404)
Senior secured notes
Repurchase of principal amount	64,500			64,500
Principal amount							$ 1,000,000
Net cash consideration				48,400
Gain on early extinguishment of debt, net				15,300
Original issue discount written off				600
Write off of Deferred Debt Issuance Cost				200
Senior secured term loan
Repurchase of principal amount	$ 40,000			40,000
Principal amount							$ 350,000
Net cash consideration				22,800
Gain on early extinguishment of debt, net				15,300
Original issue discount written off				400
Write off of Deferred Debt Issuance Cost				$ 1,500