Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Narratives (Details)

v3.10.0.1
Stock-Based Compensation - Narratives (Details) - USD ($)
8 Months Ended 12 Months Ended 15 Months Ended 17 Months Ended
Dec. 27, 2018
Oct. 02, 2017
May 04, 2016
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2018
Sep. 30, 2017
Oct. 03, 2017
Share-based Compensation Arrangement by Share-based Payment Award                      
Stock compensation         $ 19,464,000 $ 8,799,000 $ 7,029,000        
Tax benefit from exercise of stock options         4,809,000 $ 3,345,000 $ 2,662,000        
PQ Holdings, Eco Services                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Stock awards transferred as consideration     $ 1,400,000                
Stock Option                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Stock based compensation expense not yet recognized (options)         $ 2,484,141,000       $ 2,484,141,000    
Period for which unrecognized compensation will be recognized         0 years            
Restricted Stock                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Nonvested units (shares)       2,482,932 1,770,660 2,096,637 2,482,932   1,770,660    
Granted (shares) 14,498 21,067   266,955 14,498 51,907          
Period for which unrecognized compensation will be recognized         0 years            
Stock based compensation expense not yet recognized (other than options)         $ 342,724,000       $ 342,724,000    
Restricted Stock | PQ Holdings, Eco Services                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Nonvested units (shares)     2,444,070                
Restricted Stock Units (RSUs)                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Nonvested units (shares)     0 0 998,786 1,654,690 0   998,786    
Granted (shares)       0 161,598 1,654,690          
Period for which unrecognized compensation will be recognized         0 years            
Stock based compensation expense not yet recognized (other than options)         $ 13,945,550,000       $ 13,945,550,000    
Performance Awards                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Stock compensation         $ 0            
Performance Awards | Exit Event Exceeding Threshold                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Awards vesting rights percentage         100.00%            
Incentive Unit Agreement | Stock Option | Class B units                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Granted (weighted average exercise price, usd per share)     $ 1,000         $ 1,000      
Options outstanding (shares)     25,093         25,093      
Incentive Unit Agreement | Stock Option | Class B units | Annual Vesting as of Dec 1, 2015                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Awards vesting rights percentage     25.00%         25.00%      
Incentive Unit Agreement | Stock Option | Class B units | Employee                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Options outstanding (shares)     10,674         10,674      
Incentive Unit Agreement | Stock Option | Class B units | Employee | Time based                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Awards vesting rights percentage     50.00%         50.00%      
Incentive Unit Agreement | Stock Option | Class B units | Employee | Performance based                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Awards vesting rights percentage     50.00%         50.00%      
Incentive Unit Agreement | Stock Option | Class B units | Directors and affiliates                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Options outstanding (shares)     14,419         14,419      
2016 Stock Incentive Plan | Stock Option                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Stock options granted (shares)                   7,644,518  
Options outstanding (shares)     1,378,302                
Expected term (in years)             5 years        
Expected volatility             45.79%        
Risk-free interest rate             1.54%        
Expected dividend yield             0.00%        
Shares authorized (shares)     8,017,038                
Weighted average exercise price (usd per share)     $ 8.04                
Expiration period     10 years           10 years 10 years  
2016 Stock Incentive Plan | Stock Option | PQ Holdings, Eco Services                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Accelerated compensation cost     $ 1,174,000                
2017 Omnibus Incentive Plan | Stock Option                      
Share-based Compensation Arrangement by Share-based Payment Award                      
Stock options granted (shares)       538,908 241,316 1,051,496          
Granted (weighted average exercise price, usd per share)       $ 8.05 $ 17.50 $ 13.70          
Options outstanding (shares)     1,738,527 1,798,438 2,941,154 2,715,170 1,798,438   2,941,154    
Expected term (in years)         5 years 9 months            
Expected volatility         26.38%            
Risk-free interest rate         2.86%            
Expected dividend yield         0.00%            
Shares reserved for issuance (shares)                     7,344,000
Number of shares available for grant (shares)         5,396,119       5,396,119   372,520
Weighted average exercise price (usd per share)     $ 7.80 $ 7.96 $ 10.79 $ 10.18 $ 7.96   $ 10.79