Non-Controlling Interest (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
Oct. 04, 2014	Nov. 01, 2014
Non-Controlling Interest
Interest purchased from minority interest holders (as a percent)	14.00%
Increase in capital in excess of par due to purchase of non-controlling interest	$ 7,400	$ 7,410
Cash consideration paid to former minority interest holders	$ 6,700	$ 6,651

Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration