Debt (6.750% Senior Notes due in 2020 ) - Additional Information (Detail) - Jul. 04, 2015 - 6.750% Senior Notes Due in 2020 [Member] - USD ($) $ in Millions	Total
Debt Instrument [Line Items]
Financing fees	$ 14.4
Amortization period of financing fees (years)	5 years

Amount of the fee that accompanies borrowing money under the debt instrument.

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(b))

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

Name:	us-gaap_DebtInstrumentFeeAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant