Exchangeable Senior Notes (Tables)

9 Months Ended

Sep. 30, 2019

Debt Disclosure [Abstract]

Schedule of information about total carrying amounts of equity components, principal amounts of liability components, unamortized discounts and net carrying amounts for notes

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

	September 30, 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	(4,884		)	(8,417		)
Unamortized debt issuance costs	(2,411		)	(4,209		)
Net carrying amount of liability components	$	567,705		$	562,374

Summary of amount of interest cost recognized relating to contractual interest rates and amortization of discounts on liability components of notes

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

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2019		2018		2019		2018
Contractual interest	$	4,492	$	4,492	$	13,476	$	13,614
Amortization of discount	1,186		1,140		3,533		3,525
Total interest expense recognized	$	5,678	$	5,632	$	17,009	$	17,139