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Relationship with Universal Health Realty Income Trust and Related Party Transactions - Additional Information (Detail) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) Hospital Facility SquareFoot Bed Lease | Dec. 31, 2019 USD ($) | Sep. 30, 2019 SquareFoot | Mar. 31, 2019 USD ($) Hospital | Dec. 31, 2013 | Dec. 31, 2019 USD ($) | Dec. 31, 2018 | Dec. 31, 2017
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Net revenues | $ 2,829,667,000 |  |  | $ 2,804,391,000 |  |  |  |
Number of hospital facilities | Hospital | 3 |  |  |  |  |  |  |
Number of third party tenant rentable square feet | SquareFoot | 26,000 |  |  |  |  |  |  |
Number of flex lease commitment rentable square feet | SquareFoot | 20,000 |  |  |  |  |  |  |
Chief Executive Officer |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Estimated payments to acquire life insurance policies | $ 28,000,000 |  |  |  |  |  |  |
Payments to acquire life insurance policies, net | 1,100,000 |  |  |  |  | $ 1,100,000 |  |
Chief Executive Officer | Trust Owned by CEO |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Estimated payments to acquire life insurance policies | $ 9,000,000 |  |  |  |  |  |  |
Joint Venture Agreement |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Lease initial terms | 20 years |  |  |  |  |  |  |
Lease renewal period, years | 10 years |  |  |  |  |  |  |
Number of beds | Bed | 108 |  |  |  |  |  |  |
Number of triple net lease | Lease | 5 |  |  |  |  |  |  |
Number of square foot to be constructed | SquareFoot | 80,000 |  |  |  |  |  |  |
Expected aggregate fee | $ 750,000 |  |  |  |  |  |  |
Estimated project cost | 37,500,000 |  |  |  |  |  |  |
Estimated initial annual rent | $ 2,700,000 |  |  |  |  |  |  |
Expected project to begin and be completed year | 2020 |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Lease initial terms | 5 years |  |  |  |  |  |  |
Minimum | Chief Executive Officer |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Estimated death benefit proceeds | $ 37,000,000 |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Lease initial terms | 10 years |  |  |  |  |  |  |
Maximum | Joint Venture Agreement |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Expected project to begin and be completed year | 2021 |  |  |  |  |  |  |
Relationship with Universal Health Realty Income Trust |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Trust outstanding shares held, percentage | 5.70% |  |  |  |  |  |  |
Percentage of advisory fee on average invested real estate assets | 0.70% |  |  | 0.70% |  | 0.70% | 0.70% | 0.70%
Pre-tax share of income from the Trust | $ 300,000 |  |  | $ 300,000 |  |  |  |
Dividends received from the Trust | 540,000 |  |  | 531,000 |  |  |  |
Carrying value of investment in Trust | 6,200,000 | $ 6,400,000 |  |  |  | $ 6,400,000 |  |
Market value of investment in Trust | $ 79,400,000 | 92,400,000 |  |  |  | $ 92,400,000 |  |
Lease initial terms | 10 years |  |  |  |  |  |  |
Lease renewal period, years | 5 years |  |  |  |  |  |  |
Rent expense under operating leases | $ 4,000,000 |  |  | $ 4,000,000 |  |  |  |
Notice period on renewal of lease | 90 days |  |  |  |  |  |  |
Period of rights of refusal to leased facilities | 180 days |  |  |  |  |  |  |
Number of hospital facilities | Hospital | 3 |  |  | 3 |  |  |  |
Number of free-standing emergency departments to be acquired | Facility | 2 |  |  |  |  |  |  |
Number of square feet to be constructed | SquareFoot |  |  | 75,000 |  |  |  |  |
Percentage of master lease rentable square feet | 50.00% |  |  |  |  |  |  |
Annual Minimum Rent | $ 644,000 |  |  |  |  |  |  |
Relationship with Universal Health Realty Income Trust | Minimum |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Lease initial terms | 13 years |  |  |  |  |  |  |
Relationship with Universal Health Realty Income Trust | Minimum | Limited Liability Companies |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Non-controlling ownership interests by subsidiaries | 95.00% |  |  |  |  |  |  |
Relationship with Universal Health Realty Income Trust | Maximum |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Lease initial terms | 15 years |  |  |  |  |  |  |
Relationship with Universal Health Realty Income Trust | Maximum | Limited Liability Companies |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Non-controlling ownership interests by subsidiaries | 100.00% |  |  |  |  |  |  |
Relationship with Universal Health Realty Income Trust | Advisory Fee |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Net revenues | $ 1,000,000.0 |  |  | $ 1,000,000.0 |  |  |  |
Premier, Inc. | Other (Income) Expense, Net | ASU 2016-01 |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Unrealized gain | 9,000,000 |  |  |  |  |  |  |
Premier, Inc. | Group Purchasing Organization Agreement | Restricted Stock |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Shares vesting period |  |  |  |  | 7 years |  |  |
Shares vesting period start year |  |  |  |  | 2014 |  |  |
Shares vesting period end year |  |  |  |  | 2020 |  |  |
Market value of retained vested shares | $ 61,000,000 | $ 70,000,000 |  |  |  |  |  |

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