Supplemental Guarantors Consolidating Condensed Financial Information (Narrative) (Details) (Senior Notes [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2013 9.75% Senior Notes [Member]	Mar. 31, 2014 9½% Senior Notes [Member]	Mar. 20, 2013 9½% Senior Notes [Member]
Face amount of senior notes			$ 250.0
Interest rate of senior notes	9.75%	9.50%	9.50%

Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant