Percentage of Net Revenue and Total Accounts Receivable (Detail)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accounts Receivable And Net Revenue [Line Items]
Concentration Risk, Percentage	10.00%
Allied Physicians [Member]
Accounts Receivable And Net Revenue [Line Items]
Concentration Risk, Percentage	15.80%		[1]
Sales Revenue, Net | Governmental - Medicare/Medi-Cal
Accounts Receivable And Net Revenue [Line Items]
Concentration Risk, Percentage	29.80%	34.80%
Sales Revenue, Net | L.A Care
Accounts Receivable And Net Revenue [Line Items]
Concentration Risk, Percentage	15.70%	13.20%
Sales Revenue, Net | Health Net
Accounts Receivable And Net Revenue [Line Items]
Concentration Risk, Percentage	9.90%	12.30%
Accounts Receivable | Governmental - Medicare/Medi-Cal
Accounts Receivable And Net Revenue [Line Items]
Concentration Risk, Percentage	39.30%	22.10%

[1] Represents less than 10%