XML 63 R39.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Recent Accounting Standards - Line Items Adjusted in Consolidated Statement of Comprehensive Income (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]                      
Net income $ 12,167 $ 9,700 $ 20,394 $ (7,906) $ 3,301 $ 12,699 $ 4,828 $ 1,673 $ 34,355 $ 22,501 $ 18,195
Foreign currency translation adjustment                 (11) (4,128) 5,300
Comprehensive income                 $ 34,921 $ 17,943 23,465
As Reported | ASU 2014-09                      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]                      
Net income                     17,643
Foreign currency translation adjustment                     4,805
Comprehensive income                     22,418
Effect of the Adoption | ASU 2014-09                      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]                      
Net income                     552
Foreign currency translation adjustment                     495
Comprehensive income                     $ 1,047