Convertible Senior Notes

In May 2005, we issued $250.0 million aggregate principal amount of 3.625% convertible senior notes due 2025 (“3.625% convertible senior notes”), and in November 2005, we issued $300.0 million aggregate principal amount of 5.875% convertible senior notes due 2035 ("5.875% convertible senior notes"). The 5.875% convertible senior notes are (and, prior to redemption, the 3.625% convertible senior notes were) unsecured, subordinate to existing and future secured obligations and structurally subordinate to existing and future claims of our subsidiaries' creditors. These notes (net of repurchases since the issuance dates) are reflected within convertible senior notes on our consolidated balance sheets. No put rights exist under our 5.875% convertible senior notes.

In June 2016 we repurchased $4.5 million aggregate principal amount of outstanding 5.875% convertible senior notes for $2.0 million plus accrued interest from unrelated third parties. The purchase resulted in a gain of $1.0 million (net of the notes’ applicable share of deferred costs, which were written off in connection with the repurchases). Upon acquisition, the notes were retired.

In May 2015 we redeemed the remainder of the outstanding 3.625% convertible senior notes. Subsequent to this redemption, only our 5.875% convertible senior notes remain outstanding.

The following summarizes (in thousands) components of our consolidated balance sheets associated with our convertible senior notes:



	As of
	September 30, 2016			December 31, 2015
Face amount of 5.875% convertible senior notes	88,780			93,280
Discount	(26,750		)	(28,497		)
Net carrying value	$	62,030		$	64,783
Carrying amount of equity component included in additional paid-in capital	$	108,714		$	108,714
Excess of instruments’ if-converted values over face principal amounts	$	—		$	—