Exchangeable Senior Notes (Tables)

12 Months Ended

Dec. 31, 2015

Text Block [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 carrying amount of the equity component, the principal amount of the liability component, its unamortized discount and its net carrying amount were as follows for the periods indicated:

	December 31, 2015			December 31, 2014
Carrying amount of equity component—2013 Notes	$	—		$	14,496
Carrying amount of equity component—2015 Notes		22,597			—
Carrying amount of equity components	$	22,597		$	14,496
Principal amount of liability component 2013 Notes	$	85,364		$	250,000
Principal amount of liability component 2015 Notes		575,000			—
Unamortized discount—equity component—2013 Notes		(2,605	)		(10,448	)
Unamortized discount—equity component—2015 Notes		(21,565	)		—
Unamortized cash discount—2013 Notes		(633	)		(2,606	)
Unamortized debt issuance costs		(11,698	)		(1,222	)
Net carrying amount of liability components	$	623,863		$	235,724

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 2013 and 2015 senior notes was as follows for the periods indicated:

	For the Year Ended December 31,
	2015		2014		2013
Contractual interest	$	9,939	$	5,936	$	3,134
Amortization of discount		3,310		2,683		1,404
Total interest expense recognized	$	13,249	$	8,619	$	4,538

Summary of Repurchase of Debt

Information about the repurchase is as follows:

	September 15, 2015
Principal amount repurchased	$	164,636
Amount allocated to:
Extinguishment of liability component	$	157,100
Reacquisition of equity component		70,112
Total cash paid for repurchase	$	227,212
Exchangeable senior notes repurchased	$	164,636
Extinguishment of liability component		(157,100	)
Discount on exchangeable senior notes		(6,931	)
Related debt issuance costs		(605	)
Gain/(Loss) on repurchase	$	—