v3.7.0.1
Income Taxes Rollforward of Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Reconciliation of Unrecognized Tax Benefits [Roll Forward]      
Beginning balance $ 7,314 $ 7,371  
Increases related to positions taken during prior years 0 0  
Increases related to positions taken during the current year 1,038 889  
Decreases related to positions settled with tax authorities 0 0  
Decreases as a result of a lapse of applicable statute of limitations 0 0  
Ending balance 8,352 8,260  
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate $ 8,352 $ 8,260 $ 7,300