Indebtedness (Tables)

9 Months Ended

Sep. 30, 2013

Indebtedness

Summary of outstanding senior notes purchased for cash pursuant to a tender offer

Senior Note	Principal		Purchase Price
5.75% Senior Notes due February 15, 2014	$	145,612	$	148,746
6.40% Senior Notes due February 15, 2015	152,560		164,140
5.75% Senior Notes due November 1, 2015	111,227		121,047
6.25% Senior Notes due August 15, 2016	260,896		292,218
	$	670,295	$	726,151