Quarterly report pursuant to Section 13 or 15(d)

RECENTLY ADOPTED AND ISSUED ACCOUNTING STANDARDS - Additional Information (Details)

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RECENTLY ADOPTED AND ISSUED ACCOUNTING STANDARDS - Additional Information (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Apr. 01, 2018
Prior Period Adjustments Restatement [Line Items]    
Adoption of new accounting standard   $ 1,956
Adoption of new accounting standard, ASU 2016-02    
Prior Period Adjustments Restatement [Line Items]    
Adoption of new accounting standard $ (2,491)  
Adoption of new accounting standard, ASU 2018-02    
Prior Period Adjustments Restatement [Line Items]    
Adoption of new accounting standard 0  
Accumulated Other Comprehensive Income (Loss)    
Prior Period Adjustments Restatement [Line Items]    
Adoption of new accounting standard (61,861)  
Accumulated Other Comprehensive Income (Loss) | Adoption of new accounting standard, ASU 2018-02    
Prior Period Adjustments Restatement [Line Items]    
Adoption of new accounting standard (61,861)  
Retained Earnings    
Prior Period Adjustments Restatement [Line Items]    
Adoption of new accounting standard   $ 1,956
Retained Earnings | Adoption of new accounting standard, ASU 2016-02    
Prior Period Adjustments Restatement [Line Items]    
Adoption of new accounting standard (2,491)  
Retained Earnings | Adoption of new accounting standard, ASU 2018-02    
Prior Period Adjustments Restatement [Line Items]    
Adoption of new accounting standard $ 61,861