Cash Dividends (Narrative) (Detail) (USD $)	3 Months Ended
Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Dividends payable quarterly (in Dollars per Share)	$ 0.15us-gaap_DividendsPayableAmountPerShare
Dividends payable, date declared (Date)	Jan. 27, 2015

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

Name:	us-gaap_DividendsPayableAmountPerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant