docs: public static List<QuarterDetail> createStandardQuarters() {
          return ImmutableList.<QuarterDetail>of(
                  new QuarterDetailImpl(new MonthDay(1, 1), new MonthDay(4, 1), 0),
                  new QuarterDetailImpl(new MonthDay(4, 1), new MonthDay(7, 1), 1),
                  new QuarterDetailImpl(new MonthDay(7, 1), new MonthDay(10, 1), 2),
                  new QuarterDetailImpl(new MonthDay(10, 1), new MonthDay(1, 1), 3));
      }