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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Employee service share-based compensation, tax benefit realized from exercise of stock options $ 2,057  
Accounting Standards Update 2016-09    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Deferred tax effect   $ 1,453
Accounting Standards Update 2016-09 | Additional Paid-in Capital    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Cumulative effect adjustment   5,999
Accounting Standards Update 2016-09 | Retained Earnings    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Cumulative effect adjustment   $ 4,546