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SIGNIFICANT ACCOUNTING POLICIES NOTES (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Accounting Policies [Abstract]    
Excess tax benefits recognized in income tax expense $ 3,762 $ 0
Prior period cash flow presentation for excess tax benefits   $ 2,300
Cumulative-effect adjustment to retained earnings for the recognition of forfeitures of stock awards $ 1,400