Condensed Consolidating Financial Statements Comprehensive Income(Details 3) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2016	Jun. 30, 2015
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	$ (24,719)	$ (34,937)
Parent
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	(13,883)	(34,501)
Guarantor Subsidiaries
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	(3,687)	(27,935)
Non-Guarantor Subsidiaries
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	(8,794)	706
Reclassifications and Eliminations
Condensed Consolidated Statements of Comprehensive Income (Loss)
Comprehensive income (loss)	$ 1,645	$ 26,793

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=51831270

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=51831223

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e557-108580

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=51831255

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration