Description of Business (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	0 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 12, 2012 ADAPTIX, Inc. [Member]
Description of Business [Line Items]
Payments to acquire businesses, gross	$ 0	$ 150,000	$ 0	$ 150,000

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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