XML 49 R39.htm IDEA: XBRL DOCUMENT v3.10.0.1
Income Taxes - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Mar. 31, 2018
Operating Loss Carryforwards [Line Items]      
Benefit from income taxes $ 5,217 $ 5,436  
Effective income tax rates (15.70%) (17.20%)  
Excess tax benefit $ 8,300 $ 9,900  
Valuation allowance carry forward credit   1,300  
Tax benefit from reversal of uncertain tax position 900 $ 700  
Unrecognized tax benefits 68,500   $ 69,100
Accrued interest and penalties related to uncertain tax positions 2,400   2,300
Expected decrease in uncertain tax positions 3,300    
Non-current income tax payable      
Operating Loss Carryforwards [Line Items]      
Unrecognized tax benefits $ 33,800   $ 35,000