Annual report pursuant to Section 13 and 15(d)

Subsequent Event - Additional Information (Detail)

v3.7.0.1
Subsequent Event - Additional Information (Detail)
Mar. 09, 2017
USD ($)
2017 Share Repurchase Program [Member] | Subsequent Event [Member] | Maximum [Member]  
Subsequent Event [Line Items]  
Repurchase of common stock authorized amount $ 425,000,000