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Revenue - Schedule of U.K. Revenue Attributed to Each Category (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 750,311	$ 789,362	$ 1,533,121	$ 1,549,979
U.K. Facilities [Member]
Disaggregation of Revenue [Line Items]
Revenue	258,836	279,549	532,429	552,206
U.K. Facilities [Member] | Health Care Facilities [Member]
Disaggregation of Revenue [Line Items]
Revenue	137,538	155,553	285,675	307,261
U.K. Facilities [Member] | Education and Children's Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	44,630	46,142	91,296	92,264
U.K. Facilities [Member] | Adult Care Facilities [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 76,668	$ 77,854	$ 155,458	$ 152,681

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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