Stock Based Compensation (Details) - Disclosure related to stock option plan $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($)
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Intrinsic value of options exercised	$ 54,326
Cash received from options exercised	42,171
Tax benefit realized from options exercised	$ 17,114
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=32706628&loc=d3e11374-113907

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Balance Type:	debit
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