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us-gaap:Standard & Poor's, AAA Rating [Member] {ID23}
us-gaap:Standard & Poor's, AA+ Rating [Member] {ID24}
us-gaap:Standard & Poor's, AA Rating [Member] {ID25}
us-gaap:Standard & Poor's, AA- Rating [Member] {ID26}
us-gaap:Standard & Poor's, A+ Rating [Member] {ID27}
us-gaap:Standard & Poor's, A Rating [Member] {ID28}
us-gaap:Standard & Poor's, A- Rating [Member] {ID29}
us-gaap:Standard & Poor's, BBB+ Rating [Member] {ID30}
us-gaap:Standard & Poor's, BBB Rating [Member] {ID31}
us-gaap:Standard & Poor's, BBB- Rating [Member] {ID32}
us-gaap:Standard & Poor's, BB+ Rating [Member] {ID33}
us-gaap:Standard & Poor's, BB Rating [Member] {ID34}
us-gaap:Standard & Poor's, BB- Rating [Member] {ID35}
us-gaap:Standard & Poor's, B+ Rating [Member] {ID36}
us-gaap:Standard & Poor's, B Rating [Member] {ID37}
us-gaap:Standard & Poor's, B- Rating [Member] {ID38}
us-gaap:Standard & Poor's, CCC+ Rating [Member] {ID39}
us-gaap:Standard & Poor's, CCC Rating [Member] {ID40}
us-gaap:Standard & Poor's, CCC- Rating [Member] {ID41}
us-gaap:Standard & Poor's, CC Rating [Member] {ID42}
us-gaap:Standard & Poor's, C Rating [Member] {ID43}
us-gaap:Standard & Poor's, D Rating [Member] {ID44}
-us-gaap:External Credit Rating, Fitch [Member] {ID45}
us-gaap:Fitch, AAA Rating [Member] {ID46}
us-gaap:Fitch, AA+ Rating [Member] {ID47}
us-gaap:Fitch, AA Rating [Member] {ID48}
us-gaap:Fitch, AA- Rating [Member] {ID49}
us-gaap:Fitch, A+ Rating [Member] {ID50}
us-gaap:Fitch, A Rating [Member] {ID51}
us-gaap:Fitch, A- Rating [Member] {ID52}
us-gaap:Fitch, BBB+ Rating [Member] {ID53}
us-gaap:Fitch, BBB Rating [Member] {ID54}
us-gaap:Fitch, BBB- Rating [Member] {ID55}
us-gaap:Fitch, BB+ Rating [Member] {ID56}
us-gaap:Fitch, BB Rating [Member] {ID57}
us-gaap:Fitch, BB- Rating [Member] {ID58}
us-gaap:Fitch, B+ Rating [Member] {ID59}
us-gaap:Fitch, B Rating [Member] {ID60}
us-gaap:Fitch, B- Rating [Member] {ID61}
us-gaap:Fitch, CCC+ Rating [Member] {ID62}
us-gaap:Fitch, CCC Rating [Member] {ID63}
us-gaap:Fitch, CCC- Rating [Member] {ID64}
us-gaap:Fitch, CC Rating [Member] {ID65}
us-gaap:Fitch, C Rating [Member] {ID66}
us-gaap:Fitch, D Rating [Member] {ID67}
-us-gaap:External Credit Rating, Moody's [Member] {ID68}
us-gaap:Moody's, Aaa Rating [Member] {ID69}
us-gaap:Moody's, Aa1 Rating [Member] {ID70}
us-gaap:Moody's, Aa2 Rating [Member] {ID71}
us-gaap:Moody's, Aa3 Rating [Member] {ID72}
us-gaap:Moody's, A1 Rating [Member] {ID73}
us-gaap:Moody's, A2 Rating [Member] {ID74}
us-gaap:Moody's, A3 Rating [Member] {ID75}
us-gaap:Moody's, Baa1 Rating [Member] {ID76}
us-gaap:Moody's, Baa2 Rating [Member] {ID77}
us-gaap:Moody's, Baa3 Rating [Member] {ID78}
us-gaap:Moody's, Ba1 Rating [Member] {ID79}
us-gaap:Moody's, Ba2 Rating [Member] {ID80}
us-gaap:Moody's, Ba3 Rating [Member] {ID81}
us-gaap:Moody's, B1 Rating [Member] {ID82}
us-gaap:Moody's, B2 Rating [Member] {ID83}
us-gaap:Moody's, B3 Rating [Member] {ID84}
us-gaap:Moody's, Caa1 Rating [Member] {ID85}
us-gaap:Moody's, Caa2 Rating [Member] {ID86}
us-gaap:Moody's, Caa3 Rating [Member] {ID87}
us-gaap:Moody's, Ca Rating [Member] {ID88}
us-gaap:Moody's, C Rating [Member] {ID89}
-us-gaap:Internal Credit Rating [Member] {ID92}
us-gaap:Risk Level, High [Member] {ID93}
us-gaap:Risk Level, Medium [Member] {ID94}
us-gaap:Risk Level, Low [Member] {ID95}