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Derivative Financial Instruments - Schedule of Amount Included in Other Comprehensive Income for Derivative Instruments Designated as Hedges of Cash Flows (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Derivatives in Hedging Relationships [Member]        
Derivatives in cash flow hedging relationship        
Amount of gain (loss) recognized in other comprehensive income (loss), net of tax $ (129) $ (277) $ (94) $ (1,097)