Subsequent Events - Additional Information (Detail) - Subsequent Event [Member] - USD ($) $ in Millions	May 01, 2020	Apr. 10, 2020
Subsequent Event [Line Items]
CARES act of 2020, public health and social services emergency fund amount		$ 8.0
CARES act of 2020, medicare payment amount		$ 29.7
Revolving Credit Facility [Member] \| Second Amendment to Credit Facility [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate on variable basis	0.50%
Excess of debt due to prepayment	$ 250.0
Excess of unrestricted cash	$ 100.0
Revolving Credit Facility [Member] \| Second Amendment to Credit Facility [Member] \| LIBOR Floor [Member]
Subsequent Event [Line Items]
Debt instrument, interest rate on variable basis	3.50%
Debt instrument, interest rate during the period	1.00%

CARES Act of 2020 medicare payment amount.

No definition available.

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- Definition

CARES Act of 2020 public health and social services emergency fund amount.

+ References

No definition available.

+ Details

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- Definition

Line of credit excess of unrestricted cash condition.

+ References

No definition available.

+ Details

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- Definition

Prepayments of lines of credit exceeds.

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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