SUBSEQUENT EVENT (Details)
$ / shares in Units, $ in Millions |
Mar. 09, 2016
USD ($)
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Feb. 29, 2016
USD ($)
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Mar. 10, 2016
USD ($)
$ / shares
|
Dec. 31, 2015
USD ($)
$ / shares
|
Dec. 31, 2014
$ / shares
|
May. 06, 2014
USD ($)
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May. 03, 2013
USD ($)
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| SUBSEQUENT EVENT |
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| Common stock, par value (in dollars per share) | $ / shares |
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$ 0.001
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$ 0.001
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| Repurchase Program May 2014 |
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| SUBSEQUENT EVENT |
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| Stock repurchase amount |
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$ 20.0
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| Amount available under the stock repurchase plan |
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$ 14.7
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| Credit Agreement2013 | Revolving Credit Facility |
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| SUBSEQUENT EVENT |
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| Maximum borrowing capacity under senior secured credit facility |
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$ 25.0
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| Subsequent Event | Tender Offer | Maximum |
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| SUBSEQUENT EVENT |
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| Stock repurchase amount |
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$ 12.0
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| Share price (in dollars per share) | $ / shares |
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$ 0.00
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| Subsequent Event | Tender Offer | Minimum |
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| SUBSEQUENT EVENT |
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| Share price (in dollars per share) | $ / shares |
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$ 0.00
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| Subsequent Event | Repurchase Program March 2016 |
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| SUBSEQUENT EVENT |
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| Stock repurchase amount |
$ 15.0
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| Subsequent Event | Experton |
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| SUBSEQUENT EVENT |
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| Cash paid |
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$ 0.6
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| Cash to be paid |
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$ 0.6
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| Term of payment |
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1 year
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| Minimum earn-out payments to be paid to the sellers |
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$ 0.0
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| Subsequent Event | Credit Agreement2013 |
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| SUBSEQUENT EVENT |
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| Maximum total leverage ratio |
3.00
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| Subsequent Event | Credit Agreement2013 | Revolving Credit Facility |
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| SUBSEQUENT EVENT |
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| Increase to maximum borrowing capacity |
$ 15.0
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| Maximum borrowing capacity under senior secured credit facility |
$ 40.0
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