Segment Information - (Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014
Foreign Currency Exchange Rate Translation Amount	$ 1.1	$ 1.1

Foreign exchange rate used to translate amounts difference between reported amount and reporting currency denominated amount.

No definition available.

Name:	mdit_ForeignCurrencyExchangeRateTranslationAmount
Namespace Prefix:	mdit_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration