Common Stock (Narrative) (Detail) (USD $)	3 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Mar. 31, 2014 Subsequent Event [Member]
Common Stock [Line Items]
Dividends declared, per share	$ 0.06	$ 0.06	$ 0.06
Dividends declared, date of declaration	Dec. 05, 2013	Aug. 28, 2013	Feb. 06, 2014
Dividends declared, date of record	Dec. 16, 2013	Sep. 16, 2013	Mar. 13, 2014
Dividends declared, date of distribution	Dec. 27, 2013	Sep. 27, 2013	Mar. 28, 2014