Convertible Senior Notes (Tables)

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Schedule of Convertible Senior Notes

The Notes consist of the following components (in thousands):

	September 30, 2016			December 31, 2015
Liability component:
Principal	$	690,000		$	690,000
Less: debt discount and issuance costs, net of amortization	(55,496		)	(71,953		)
Net carrying amount	$	634,504		$	618,047
Equity component:	$	101,276		$	101,276

Schedule of Interest Expense

The following table sets forth total interest expense included in the consolidated statements of income related to the Notes (in thousands):

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2016			2015			2016			2015
Amortization of debt discount and issuance costs	$	5,534		$	5,344		16,457			15,892
Capitalization of interest expense	(868		)	(714		)	(2,499		)	(2,008		)
Total interest expense	$	4,666		$	4,630		$	13,958		$	13,884