Employee Benefit Plans - Summary of Changes in Partnerships in Care Pension Plan Net Pension Liability (Detail) - Pension Plan [Member] - Partnership in Care Benefits Plan [Member] - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Net pension liability at beginning of period	$ 3,502	$ 8,795
Employer contributions	(2,413)	(2,267)
Net pension expense	(933)	283
Pension liability adjustment	4,012	(2,803)
Foreign currency translation (loss) gain	93	(506)
Net pension liability at end of period	$ 4,261	$ 3,502

Employee Benefit Plans - Summary of Changes in Partnerships in Care Pension Plan Net Pension Liability (Detail) - Pension Plan [Member] - Partnership in Care Benefits Plan [Member] - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2019

Dec. 31, 2018

Defined Benefit Plan Disclosure [Line Items]

Net pension liability at beginning of period

$ 3,502

$ 8,795

Employer contributions

(2,413)

(2,267)

Net pension expense

(933)