Commitments Guarantees and Contingencies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Future Minimum Payments Due	$ 60,109
Operating Leases, Rent Expense	8,610	$ 7,309	$ 7,416
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	$ 1,600
Commitments Guarantees and Contingencies (Textual)
Applicable program documentation period	365 days
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 8,136
Operating Leases, Future Minimum Payments, Due in Two Years	8,350
Operating Leases, Future Minimum Payments, Due in Three Years	8,067
Operating Leases, Future Minimum Payments, Due in Four Years	8,037
Operating Leases, Future Minimum Payments, Due in Five Years	7,713
Operating Leases, Future Minimum Payments, Due Thereafter	19,806
Other Commitment	6,599
Other Commitment, Due in Next Twelve Months	2,487
Other Commitment, Due in Second Year	1,413
Other Commitment, Due in Third Year	794
Other Commitment, Due in Fourth Year	816
Other Commitment, Due in Fifth Year	551
Purchase Commitment, Remaining Minimum Amount Committed	538
Long-term Line of Credit	15,000	105,000
Long-term Line of Credit, Noncurrent	15,000
Business Combination, Contingent Consideration, Liability	18,817	$ 24,153
Purchase Obligation	3,800
Purchase Obligation, Due in Next Twelve Months	1,250
Purchase Obligation, Due in Second Year	1,250
Purchase Obligation, Due in Third Year	1,300
Contractual Obligation	104,325
Contractual Obligation, Due in Next Fiscal Year	30,690
Contractual Obligation, Due in Second Year	11,013
Contractual Obligation, Due in Third Year	10,161
Contractual Obligation, Due in Fourth Year	23,853
Contractual Obligation, Due in Fifth Year	8,264
Contractual Obligation, Due after Fifth Year	$ 20,344