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Restructuring - Schedule of Reconciliation of Restructuring Liability (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Restructuring And Related Activities [Abstract]          
Balance at beginning of period $ 133   $ 1,568 $ 185 $ 185
Plus: Amounts charged to cost and expense 1,192 $ 1,400 1,745 $ 3,463 6,014
Less: Amounts paid (967)   (2,955)   (4,631)
Balance at end of period $ 358   $ 358   $ 1,568