SUBSEQUENT EVENTS (Details) - Subsequent Events $ / shares in Units, shares in Millions, $ in Millions	Aug. 13, 2018 USD ($) $ / shares shares
Private Placement \| Class A Common Stock
Subsequent Events
Common stock issued per share price \| $ / shares	$ 10.00
Aggregate purchase price of common stock issued	$ 250.0
UHS Business combination
Subsequent Events
Purchase price	1,740.0
UHS Business combination \| UHS
Subsequent Events
Purchase price	$ 1,580.0
Newly issued shares of Agiliti's Common stock distributed to equity holders \| shares	33.5
Umpire Cash Merger Sub \| Secured Debt
Subsequent Events
Long-Term Debt	$ 660.0
Umpire Cash Merger Sub \| Revolving Credit Facility
Subsequent Events
Long-Term Debt	$ 150.0

Number of shares of equity interests issued or issuable to acquire entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

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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.

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