The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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

Subsequent Events (Details) - USD ($) $ in Thousands	Mar. 05, 2019	Apr. 01, 2019	Feb. 28, 2019	Jul. 01, 2006	May 01, 1999
Subsequent Event [Line Items]
Payments to Acquire Intangible Assets	$ 1,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased		3,000,000	1,383,271	2,000,000	1,563,000