Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Subsequent Event (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Subsequent Event (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Jun. 30, 2017	Jun. 30, 2016	May 18, 2017
Subsequent Event
Loss on extinguishment of debt		$ 2,933	$ 2,933	$ 0
8.5% Senior Notes Due 2019
Subsequent Event
Amount of debt repurchased					$ 45,500
8.5% Senior Notes Due 2019 \| Subsequent Event
Subsequent Event
Amount of debt repurchased	$ 154,500
Loss on extinguishment of debt	6,900
Redemption premium	$ 4,900