Commitment and Contingencies (Details) - USD ($) $ in Thousands			6 Months Ended
	Jul. 31, 2015	Jun. 09, 2014	Jun. 30, 2015	Mar. 31, 2015
Loss Contingencies [Line Items]
Irrevocable letter of credit or Letter of Credit outstanding			$ 3,000
Amended Letter of Credit
Loss Contingencies [Line Items]
Irrevocable letter of credit or Letter of Credit outstanding			3,000	$ 4,600
Subsidiaries | New Jersey Department of Human Services
Loss Contingencies [Line Items]
Contract extension	60 days
Subsidiaries | KHS v. AMG
Loss Contingencies [Line Items]
Loss contingency damages awarded, value		$ 1,380
Subsidiaries | Pending litigation | KHS v. AMG
Loss Contingencies [Line Items]
Loss contingency damages sought, value			2,300
Subsidiaries | Pending litigation | New York Action
Loss Contingencies [Line Items]
Loss contingency damages sought, value			$ 500
Subsidiaries | Pending litigation | Surety Bond | KHS v. AMG
Loss Contingencies [Line Items]
Surety bond amount required, percent of judgment			150.00%
Cash collateral			$ 2,200
Subsidiaries | Pending litigation | Surety Bond | Texas Action
Loss Contingencies [Line Items]
Cash collateral			500
Minimum | Subsidiaries | KHS v. AMG
Loss Contingencies [Line Items]
Loss contingency damages sought, value			$ 7,000