Stock Awards - Stock-based Award Activity (Parenthetical) (Details) shares in Millions	Dec. 31, 2025 shares
Share-Based Payment Arrangement [Abstract]
Share payout at target level for these market-based awards would result in nonvested awards	3.1

Share Based Compensation Arrangement Nonvested Awards Outstanding Number Of Shares.

No definition available.

Name:	mpt_ShareBasedCompensationArrangementNonvestedAwardsOutstandingNumberOfShares
Namespace Prefix:	mpt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant