XML 76 R62.htm IDEA: XBRL DOCUMENT v3.19.2
Impact on Previously Issued Financial Statements for the Correction of an Error, Revised Consolidated Statement of Shareholders' Equity (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2017
Mar. 31, 2016
Consolidated Statement of Shareholders' Equity [Abstract]                        
Balance at beginning of period       $ 78,510,000         $ 78,510,000      
Net income $ (2,765,000) $ (3,102,000) $ 3,513,000 (5,495,000) $ 8,376,000 $ (2,527,000) $ 5,595,000 $ 7,820,000 (7,849,000) $ 19,264,000 $ 38,735,000  
Balance at end of period $ 71,407,000       78,510,000       71,407,000 78,510,000    
Historical Misapplication of U.S. GAAP Related to Timing of Recognizing Certain Expenses Incurred in Connection with New Business [Member]                        
Consolidated Statement of Shareholders' Equity [Abstract]                        
Balance at beginning of period       77,768,000       58,942,000 77,768,000 58,942,000 19,274,000  
Cumulative-effect adjustment                       $ 892,000
Net income                   18,826,000 38,776,000  
Balance at end of period         77,768,000         77,768,000 58,942,000  
Historical Misapplication of U.S. GAAP Related to Timing of Recognizing Certain Expenses Incurred in Connection with New Business [Member] | As Previously Reported [Member]                        
Consolidated Statement of Shareholders' Equity [Abstract]                        
Balance at beginning of period       66,606,000       50,290,000 66,606,000 50,290,000 11,825,000  
Cumulative-effect adjustment                       892,000
Net income                   16,316,000 37,573,000  
Balance at end of period         66,606,000         66,606,000 50,290,000  
Historical Misapplication of U.S. GAAP Related to Timing of Recognizing Certain Expenses Incurred in Connection with New Business [Member] | Adjustment [Member]                        
Consolidated Statement of Shareholders' Equity [Abstract]                        
Balance at beginning of period       $ 11,162,000       $ 8,652,000 $ 11,162,000 8,652,000 7,449,000  
Cumulative-effect adjustment                       $ 0
Net income                   2,510,000 1,203,000  
Balance at end of period         $ 11,162,000         $ 11,162,000 $ 8,652,000