Exchangeable Senior Notes (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of Information about Carrying Amount of Equity Component, Principal Amount of Liability Component, Unamortized Discount and Net Carrying Amount for Notes

Information about the 2015 Notes, including the total carrying amounts of the equity component, the principal amount of the liability component, the unamortized discount and net carrying amount, was as follows for the periods indicated:

	December 31, 2019			December 31, 2018
Carrying amount of equity component	$	22,597		$	22,597
Principal amount of liability component	$	575,000		$	575,000
Unamortized discount - equity component	(3,675		)	(8,417		)
Unamortized debt issuance costs	(1,812		)	(4,209		)
Net carrying amount of liability component	$	569,513		$	562,374

Summary of Amount of Interest Cost Recognized Relating to Contractual Interest Rate and Amortization of Discount on Liability Component of Notes

The amount of interest cost recognized relating to the contractual interest rate and the amortization of the discount on the liability component for the Notes were as follows for the periods indicated:

	For the Year Ended December 31,
	2019		2018		2017
Contractual interest	$	17,968	$	18,106	$	19,303
Amortization of discount	4,742		4,687		5,103
Total interest expense recognized	$	22,710	$	22,793	$	24,406

Summary of Repurchase of Debt

Information about the repurchases is as follows:

	For the Year Ended December 31,
		2018			2017
Principal amount repurchased		$	49,259		$	13,911
Amount allocated to:
Extinguishment of liability component		$	49,019		$	13,692
Reacquisition of equity component		31,251			6,350
Total consideration paid for repurchase		$	80,270		$	20,042
Exchangeable senior notes repurchased		$	49,259		$	13,911
Extinguishment of liability component		(49,019		)	(13,692		)
Discount on exchangeable senior notes		(230		)	(184		)
Related debt issuance costs		(10		)	(35		)
Gain/(loss) on repurchase		$	—		$	—