XML 70 R57.htm IDEA: XBRL DOCUMENT v3.10.0.1
Treasury Stock Acquisition (Detail)
$ in Thousands
 6 Months Ended
Jun. 30, 2018
USD ($)
shares
Schedule of Treasury Stock [Line Items]  
Treasury shares at beginning of period | shares 43,802,611
Treasury shares at end of period | shares 46,865,608
Treasury shares at beginning of period $ 918,711
Treasury stock acquired, cost 59,879
Treasury shares at end of period $ 978,590
Stock Buyback Program  
Schedule of Treasury Stock [Line Items]  
Treasury stock acquired, shares | shares 2,603,317
Treasury stock acquired, cost $ 50,530
Long Term Incentive Plan  
Schedule of Treasury Stock [Line Items]  
Treasury stock acquired, shares | shares 459,680 [1]
Treasury stock acquired, cost $ 9,349 [1]
[1] The Company withheld 459,680 shares in the second quarter of 2018 with respect to employees’ tax withholding obligations upon vesting of restricted shares. These shares were acquired at fair market value pursuant to the terms of the Patterson-UTI Energy, Inc. 2014 Long-Term Incentive Plan and not pursuant to the stock buyback program.