Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 2,493	$ 1,925	$ 4,647	$ 1,608
Effective tax rate (as a percentage)	23.70%	32.60%	28.00%	32.50%
Liability for unrecognized tax benefits	$ 5,305		$ 5,305		$ 4,762
Period within which the company does not anticipate total unrecognized tax benefits to change	within the next twelve months