2.0.0.10 false Stock-Based Compensation 006090 - Disclosure - Stock-Based Compensation true false false false 1 usd $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u002 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 2 Notes to Financial Statements [Abstract] 0 rdc_NotesToFinancialStatementsAbstract rdc false na duration string No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false No definition available. false 3 Note 9 - Stock-Based Compensation 1 us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock us-gaap true na duration string No definition available. false false false false false false false false false false false terselabel false 1 false false false false 0 0 <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">Note 9 - Stock-Based Compensation</font></div> <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br /> </div> <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">On March 5, 2010, the Company granted restricted stock awards and stock appreciation rights covering a total of 798,846 shares, which vest in one-third increments over a three-year service period, with a fair value aggregating approximately $17.7 million.  Grant-date fair value, net of estimated forfeitures, was $17.1 million, which will be amortized on a straight-line basis over three years from the grant date.</font></div> <div style="DISPLAY: block; TEXT-INDENT: 0pt"><br /> </div> <div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman">At March 31, 2010, Rowan had approximately $33.4 million of unrecognized future stock-based compensation expense, which is expected to be recognized over a remaining weighted-average period of 1.7 years</font></div> Note 9 - Stock-Based Compensation On March 5, 2010, the Company granted restricted stock awards and stock appreciation rights covering a total of 798,846 false false false Disclosure of compensation-related costs for share-based compensation which may include disclosure of policies, compensation plan details, allocation of stock compensation, incentive distributions, share-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65, A240 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-6 -Paragraph 53 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 false false 1 2 false UnKnown UnKnown UnKnown false true