Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

v2.4.0.8
Income Taxes - Additional Information (Detail) (USD $)
3 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2014
Scenario, Forecast [Member]
Minimum [Member]
Dec. 31, 2014
Scenario, Forecast [Member]
Maximum [Member]
Sep. 30, 2014
Non-U.S jurisdictions [Member]
Sep. 30, 2014
Non-U.S jurisdictions [Member]
Minimum [Member]
Sep. 30, 2014
Non-U.S jurisdictions [Member]
Maximum [Member]
Schedule Of Income Taxes [Line Items]                      
Estimated effective tax rate 18.70% 33.20% 22.30% 31.90%     21.00% 25.00%      
Statutory federal rate                   0.00% 34.00%
U.S. federal and state statutory rate     39.00%                
Cash and cash equivalents $ 440,790,000 $ 332,813,000 $ 440,790,000 $ 332,813,000 $ 372,011,000 $ 325,826,000     $ 170,500,000    
Percentage of cash and cash equivalents                 38.70%    
Repatriation of earnings     $ 40,500,000