Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

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

Subsidiary Guarantors (Details) $ in Thousands	11 Months Ended
Subsidiary Guarantors (Details) $ in Thousands	May. 08, 2014 offering	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	May. 13, 2014 USD ($)	Mar. 18, 2014 USD ($)	May. 28, 2013 USD ($)
Debt Instrument [Line Items]
Long-term debt, gross		$ 985,000	$ 959,000
Senior notes
Debt Instrument [Line Items]
Number of private offerings \| offering	2
Aggregate principal amount					$ 250,000
Percent of subsidiaries owned		100.00%
6.625% Senior Notes due 2021 \| Senior notes
Debt Instrument [Line Items]
Long-term debt, gross		$ 550,000	$ 550,000	$ 300,000		$ 250,000