CREATE TABLE table_14600 ("Outcome" TEXT, "Year" FLOAT, "Championship" TEXT, "Surface" TEXT, "Partner" TEXT, "Opponents" TEXT, "Score" TEXT)

Who was the opponent of the runner-up after 2012?
SELECT "Opponents" FROM table_14600 WHERE "Year" > '2012' AND "Outcome" = 'runner-up'
SELECT "Opponents" FROM "table_14600" WHERE "Outcome" = 'runner-up' AND "Year" > '2012'