Debt Arrangements Debt Arrangements (Details) $ in Thousands	3 Months Ended
Jun. 30, 2015 USD ($)
Minimum [Member]
Line of Credit Facility [Line Items]
Ratio of EBITDA to fixed charges	2.0
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Amount outstanding	$ 185,000

Fair value of the amount outstanding under the credit facility.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13476-108611

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