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SHARE-BASED COMPENSATION PLANS - Information Pertaining to Outstanding and Exercisable Options (Detail) - Orrstown 2011 Incentive Stock Plan - Employee Stock Option | 9 Months Ended
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Sep. 30, 2016 $ / shares shares
Range of Exercise Prices |
Range of Exercise Prices, Minimum (in usd per share) | $ 21.14
Range of Exercise Prices, Maximum (in usd per share) | 37.59
$21.14 - $24.99 |
Range of Exercise Prices |
Range of Exercise Prices, Minimum (in usd per share) | 21.14
Range of Exercise Prices, Maximum (in usd per share) | $ 24.99
Number Outstanding (in shares) | shares | 35,099
Weighted Average Remaining Contractual Life | 3 years 7 months 28 days
Weighted Average Exercise Price (in usd per share) | $ 21.47
$25.00 - $29.99 |
Range of Exercise Prices |
Range of Exercise Prices, Minimum (in usd per share) | 25.00
Range of Exercise Prices, Maximum (in usd per share) | $ 29.99
Number Outstanding (in shares) | shares | 2,792
Weighted Average Remaining Contractual Life | 3 years 6 months
Weighted Average Exercise Price (in usd per share) | $ 25.76
$30.00 - $34.99 |
Range of Exercise Prices |
Range of Exercise Prices, Minimum (in usd per share) | 30.00
Range of Exercise Prices, Maximum (in usd per share) | $ 34.99
Number Outstanding (in shares) | shares | 35,231
Weighted Average Remaining Contractual Life | 1 year 2 months 5 days
Weighted Average Exercise Price (in usd per share) | $ 31.34
$35.00 - $37.59 |
Range of Exercise Prices |
Range of Exercise Prices, Minimum (in usd per share) | 35.00
Range of Exercise Prices, Maximum (in usd per share) | $ 37.59
Number Outstanding (in shares) | shares | 7,348
Weighted Average Remaining Contractual Life | 2 years 9 months 22 days
Weighted Average Exercise Price (in usd per share) | $ 37.08
$21.14 - $37.59 |
Range of Exercise Prices |
Number Outstanding (in shares) | shares | 80,470
Weighted Average Remaining Contractual Life | 2 years 5 months 27 days
Weighted Average Exercise Price (in usd per share) | $ 27.36

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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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