Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(31))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

Stockholders' Equity - Accelerated Share Repurchase Program (Details) - USD ($) $ in Thousands, shares in Millions	24 Months Ended
	Dec. 31, 2013	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Adjustments for misclassification
Stockholders' equity	$ 416,505	$ 381,143	$ 393,991	$ 405,473
Common Stock
Adjustments for misclassification
Stockholders' equity	609	615	613	612
Additional Paid-In Capital
Adjustments for misclassification
Stockholders' equity	170,283	$ 185,791	$ 181,676	$ 176,438
Correction of accelerated share repurchase and employee stock plan activity \| Adjustment \| Common Stock
Adjustments for misclassification
Stockholders' equity	37
Correction of accelerated share repurchase and employee stock plan activity \| Adjustment \| Additional Paid-In Capital
Adjustments for misclassification
Stockholders' equity	$ (37)
Accelerated Share Repurchase program 2012
Adjustments for misclassification
Shares repurchased	2.9