Commitments and Contingencies (Narrative) (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2015
Commitments and Contingencies [Abstract]
Amount of monetary damages County is seeking		$ 2,962
Pre-judgment interest		10.00%
Term of unilateral option to extend contract		5 years
Period to cure the default	30 days
Current annual impact to pre-tax earnings resulting from termination of MDSI's contracts with Madera County		2,300
Estimated clean up costs		$ 342,000