Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Mar. 31, 2016
Accrued expenses
Reconciliation of fair value for acquisition of business, categorized as Level 3 of valuation hierarchy
Deferred compensation, current	$ 548	$ 308
Other noncurrent liabilities
Reconciliation of fair value for acquisition of business, categorized as Level 3 of valuation hierarchy
Deferred compensation liability, noncurrent	$ 3,494	$ 5,993

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable within one year (or the operating cycle, if longer). Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20028-108363

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 25
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=6409733&loc=d3e19512-108361

Name:	us-gaap_DeferredCompensationLiabilityCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant