Accounts and Taxes Payable and Accrued Liabilities - Accrued Liabilities (Detail) (USD $)	Mar. 31, 2014	Mar. 31, 2013
Payables And Accruals [Abstract]
Payroll, payroll taxes and employee benefits	$ 18,010,000	$ 14,855,000
Customer deposits	16,629,000	10,107,000
Accrued professional service fees	6,419,000	3,463,000
Self-insurance accruals	3,190,000	3,425,000
Deferred revenue	5,176,000	4,246,000
Accrued rent	2,493,000	2,291,000
Accrued legal settlements	685,000	280,000
Other	773,000	501,000
Total Accrued Liabilities	$ 53,375,000	$ 39,168,000