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Recently Issued Accounting Standards - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 0 Months Ended
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Mar. 31, 2015
New Accounting Pronouncements and Changes in Accounting Principles [Abstract] |
Debt issuance costs | $ 3.6 us-gaap_DebtIssuanceCosts

X
- Definition Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees). + References No definition available. + Details
Name: | us-gaap_DebtIssuanceCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration