Annual report pursuant to Section 13 and 15(d)

Impact of Derivative Activities on Condensed Consolidated Statements of Income (Detail)

v3.19.3.a.u2
Impact of Derivative Activities on Condensed Consolidated Statements of Income (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative gains (losses) recognized in the Consolidated Statements of Operations $ (68,131) $ 37,427 $ (17,819)
Cash settlements recognized in the Consolidated Statements of Cash Flows $ (4,136) $ (48,291) $ (3,511)