Annual report pursuant to Section 13 and 15(d)

Equity - Summary of Dividends Declared by Board of Directors (Detail)

v2.4.0.8
Equity - Summary of Dividends Declared by Board of Directors (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dividends Payable [Line Items]  
Amount per share $ 0.42
8/20/13 Record Date [Member]
 
Dividends Payable [Line Items]  
Announced Date Aug. 08, 2013
Record Date Aug. 20, 2013
Pay Date Aug. 29, 2013
Amount per share $ 0.06
11/18/13 Record Date [Member]
 
Dividends Payable [Line Items]  
Announced Date Nov. 07, 2013
Record Date Nov. 18, 2013
Pay Date Nov. 22, 2013
Amount per share $ 0.14
12/30/13 Record Date [Member]
 
Dividends Payable [Line Items]  
Announced Date Dec. 17, 2013
Record Date Dec. 30, 2013
Pay Date Jan. 10, 2014
Amount per share $ 0.22