Stock Based Compensation (Details) - Disclosure related to stock option plan $ in Thousands	6 Months Ended
Jun. 30, 2016 USD ($)
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Intrinsic value of options exercised	$ 398,890
Cash received from options exercised	244,625
Tax benefit realized from options exercised	53,631
Weighted average fair value of options granted

Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=65896087&loc=d3e11374-113907

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration