XML 89 R75.htm IDEA: XBRL DOCUMENT v3.6.0.2
Summary of Information About Stock Options Outstanding and Exercisable (Detail)
 12 Months Ended
Dec. 31, 2016
$ / shares
shares
$0.83 - $3.00  
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]  
Range of Exercise Prices, Minimum $ 0.83
Range of Exercise Prices, Maximum $ 3.00
Options Outstanding | shares 183,862
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 1 year 8 months 16 days
Options Outstanding, Weighted Average Exercise Price $ 1.64
Options Exercisable | shares 183,862
Options Exercisable, Weighted Average Remaining Contractual Life (in years) 1 year 8 months 16 days
Options Exercisable, Weighted Average Exercise Price $ 1.64
$3.01 - $5.12  
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]  
Range of Exercise Prices, Minimum 3.01
Range of Exercise Prices, Maximum $ 5.12
Options Outstanding | shares 569,901
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 1 year 7 days
Options Outstanding, Weighted Average Exercise Price $ 4.34
Options Exercisable | shares 569,901
Options Exercisable, Weighted Average Remaining Contractual Life (in years) 1 year 7 days
Options Exercisable, Weighted Average Exercise Price $ 4.34
$5.13 (option exchange)  
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]  
Range of Exercise Prices, Minimum $ 5.13
Options Outstanding | shares 183,993
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 5 months 5 days
Options Outstanding, Weighted Average Exercise Price $ 5.13
Options Exercisable | shares 183,993
Options Exercisable, Weighted Average Remaining Contractual Life (in years) 5 months 5 days
Options Exercisable, Weighted Average Exercise Price $ 5.13
$5.14 - $8.00  
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]  
Range of Exercise Prices, Minimum 5.14
Range of Exercise Prices, Maximum $ 8.00
Options Outstanding | shares 2,806,280
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 5 years 18 days
Options Outstanding, Weighted Average Exercise Price $ 5.64
Options Exercisable | shares 2,806,280
Options Exercisable, Weighted Average Remaining Contractual Life (in years) 5 years 18 days
Options Exercisable, Weighted Average Exercise Price $ 5.64
$8.01 - $11.27  
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]  
Range of Exercise Prices, Minimum 8.01
Range of Exercise Prices, Maximum $ 11.27
Options Outstanding | shares 312,500
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 2 months 5 days
Options Outstanding, Weighted Average Exercise Price $ 9.64
Options Exercisable | shares 312,500
Options Exercisable, Weighted Average Remaining Contractual Life (in years) 2 months 5 days
Options Exercisable, Weighted Average Exercise Price $ 9.64
$0.83 - $11.27  
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]  
Range of Exercise Prices, Minimum 0.83
Range of Exercise Prices, Maximum $ 11.27
Options Outstanding | shares 4,056,536
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 3 years 9 months 4 days
Options Outstanding, Weighted Average Exercise Price $ 5.56
Options Exercisable | shares 4,056,536
Options Exercisable, Weighted Average Remaining Contractual Life (in years) 3 years 9 months 4 days
Options Exercisable, Weighted Average Exercise Price $ 5.56