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Stock-Based Compensation (Textual) (Details)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Mar. 31, 2010
shares
Mar. 31, 2016
Dec. 31, 2016
shares
Dec. 31, 2015
shares
Mar. 31, 2017
USD ($)
Stock options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percent of voting interests 10.00%        
Purchase price of common stock above minimum threshold 110.00%        
Expiration period 10 years        
Award vesting period 4 years        
Compensation not yet recognized, stock options         $ 3.4
Stock options [Member] | Performance Goal: Threshold Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights 75.00%        
Stock options [Member] | Performance Goal: Superior Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting rights 25.00%        
RSAs and RSUs [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized, share-based awards other than options         2.0
Restricted Stock Units (RSUs) [Member] | Performance Goal: Threshold Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period 3 years        
Award vesting rights 33.3333%        
Restricted Stock Units (RSUs) [Member] | Performance Goal: Target Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period 4 years        
Award vesting rights 25.00%        
Performance stock units [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized, share-based awards other than options         1.2
Performance Based Options (PBOs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation not yet recognized, share-based awards other than options         $ 2.0
Minimum [Member] | Incentive Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Purchase price of common stock 100.00%        
Minimum [Member] | Non-Statutory Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Purchase price of common stock 85.00%        
2016 PSU Plan [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Future vesting rights percentage         142.30%
PBOs granted in period (shares) | shares     0    
2016 PSU Plan [Member] | Performance Shares [Member] | Second Year Vesting Period [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Future vesting rights percentage   50.00%      
2016 PSU Plan [Member] | Minimum [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance awards, threshold level, number of shares, multiplier   0      
2010 Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares reserved for future issuance (shares) | shares 1,100,000        
2015 PSU Plan [Member] | Performance Shares [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Future vesting rights percentage   92.80%      
PBOs granted in period (shares) | shares       0  
2015 PSU Plan [Member] | Performance Shares [Member] | Second Year Vesting Period [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Future vesting rights percentage         50.00%
2017 PSU and PBO Plan [Member] | Performance Shares [Member] | Second Year Vesting Period [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Future vesting rights percentage         50.00%
2017 PSU and PBO Plan [Member] | Performance Based Options (PBOs) [Member] | Second Year Vesting Period [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Estimated performance goal achievement rate         100.00%
2017 PSU Plan [Member] | Maximum [Member] | Performance Shares [Member] | Performance Goal: Threshold Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance awards, threshold level, number of shares, multiplier   0.5      
2017 PSU Plan [Member] | Maximum [Member] | Performance Shares [Member] | Performance Goal: Target Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance awards, threshold level, number of shares, multiplier   1      
2017 PSU Plan [Member] | Maximum [Member] | Performance Shares [Member] | Performance Goal: Superior Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance awards, threshold level, number of shares, multiplier   2      
2017 PBO Plan [Member] | Maximum [Member] | Performance Shares [Member] | Performance Goal: Threshold Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance awards, threshold level, number of shares, multiplier   0.25      
2017 PBO Plan [Member] | Maximum [Member] | Performance Shares [Member] | Performance Goal: Target Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance awards, threshold level, number of shares, multiplier   0.5      
2017 PBO Plan [Member] | Maximum [Member] | Performance Shares [Member] | Performance Goal: Superior Level [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Performance awards, threshold level, number of shares, multiplier   1