Convertible Senior Debt (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Schedule of Convertible Senior Debt

The following table summarizes the Company’s convertible senior debt:

	June 30, 2015		December 31, 2014
	(in thousands)
5.000% Notes due 2016	$	9,519	$	50,000
4.250% Notes due 2018	229,913		350,000
3.625% Notes due 2020	171,762		300,000
Total	$	411,194	$	700,000

Schedule of Exchange Agreement Transactions

The following table summarizes exchange agreement transactions completed during the six months ended June 30, 2015.

Agreement Date	Issuance	Aggregate Principal		Class A Common Shares Issued	Cash Payments to Noteholders		Loss on Extinguishment
		(in thousands, except share data)
February 26, 2015	2018 Senior Notes	$	120,087	5,541,115	$	13,641	$	13,372
February 26, 2015	2020 Senior Notes	$	128,238	5,297,885	$	19,283	$	19,038
March 5, 2015	2016 Senior Notes	$	40,481	2,805,513	$	6,163	$	2,732
Total		$	288,806	13,644,513	$	39,087	$	35,142

Schedule of Subsequent Events - Convertible Exchange Agreements

The following table summarizes exchange agreement transactions completed in July 2015.

Agreement Date	Issuance	Aggregate Principal		Class A Common Shares Issued	Cash Payments to Noteholders		Loss on Extinguishment
		(in thousands, except share data)
July 15, 2015	2016 Senior Notes	$	8,151	555,016	$	1,305	$	489
July 15/16, 2015	2018 Senior Notes	$	75,387	3,478,511	$	13,052	$	11,664
July 15, 2015	2020 Senior Notes	$	55,407	2,289,013	$	11,371	$	10,500
Total		$	138,945	6,322,540	$	25,728	$	22,653